diff --git a/application/Espo/Core/Console/Commands/AuthTokenCheck.php b/application/Espo/Core/Console/Commands/AuthTokenCheck.php
index a24da10679..38a9e3ae60 100644
--- a/application/Espo/Core/Console/Commands/AuthTokenCheck.php
+++ b/application/Espo/Core/Console/Commands/AuthTokenCheck.php
@@ -47,9 +47,12 @@ class AuthTokenCheck implements Command
 
     public function run(Params $params, IO $io): void
     {
-        $token = $params->getArgument(0);
+        $io->setExitStatus(1);
 
-        if (empty($token)) {
+        $token = $params->getArgument(0);
+        $userId = $params->getArgument(1);
+
+        if (!$token) {
             return;
         }
 
@@ -67,14 +70,16 @@ class AuthTokenCheck implements Command
             return;
         }
 
-        $userId = $authToken->getUserId();
+        if ($userId && $authToken->getUserId() !== $userId) {
+            return;
+        }
 
         $user = $this->entityManager
-            ->getRDBRepository(User::ENTITY_TYPE)
+            ->getRDBRepositoryByClass(User::class)
             ->select(Attribute::ID)
             ->where([
-                Attribute::ID => $userId,
-                'isActive' => true,
+                Attribute::ID => $authToken->getUserId(),
+                User::ATTR_IS_ACTIVE => true,
             ])
             ->findOne();
 
@@ -83,5 +88,6 @@ class AuthTokenCheck implements Command
         }
 
         $io->write($user->getId());
+        $io->setExitStatus(0);
     }
 }
diff --git a/application/Espo/Core/WebSocket/Pusher.php b/application/Espo/Core/WebSocket/Pusher.php
index ec1c1b0f22..d681869964 100644
--- a/application/Espo/Core/WebSocket/Pusher.php
+++ b/application/Espo/Core/WebSocket/Pusher.php
@@ -37,6 +37,7 @@ use Ratchet\Wamp\Topic;
 use Ratchet\Wamp\WampConnection;
 use Ratchet\Wamp\WampServerInterface;
 
+use React\ChildProcess\Process;
 use Symfony\Component\Process\PhpExecutableFinder;
 
 use Exception;
@@ -122,30 +123,29 @@ class Pusher implements WampServerInterface
         if ($checkCommand) {
             $checkCommand = $checkCommand . ' 2>&1';
 
-            $checkResult = exec($checkCommand, $o, $exitCode);
+            $process = new Process($checkCommand);
+            $process->start();
 
-            if ($checkResult !== 'true' || $exitCode !== 0) {
-                if ($this->isDebugMode) {
-                    $this->log("$connectionId: check access failed for topic $topicId for user $userId");
+            $process->on('exit', function ($exitCode) use ($topic, $connectionId, $topicId, $userId) {
+                if ($exitCode !== 0) {
+                    if ($this->isDebugMode) {
+                        $this->log("$connectionId: check access failed for topic $topicId for user $userId");
+                    }
+
+                    return;
                 }
 
-                return;
-            }
+                if ($this->isDebugMode) {
+                    $this->log("$connectionId: check access succeed for topic $topicId for user $userId");
+                }
 
-            if ($this->isDebugMode) {
-                $this->log("$connectionId: check access succeed for topic $topicId for user $userId");
-            }
+                $this->addTopicForUser($connectionId, $topic, $userId);
+            });
+
+            return;
         }
 
-        if (!in_array($topicId, $this->connectionIdTopicIdListMap[$connectionId])) {
-            if ($this->isDebugMode) {
-                $this->log("$connectionId: add topic $topicId for user $userId");
-            }
-
-            $this->connectionIdTopicIdListMap[$connectionId][] = $topicId;
-        }
-
-        $this->topicHash[$topicId] = $topic;
+        $this->addTopicForUser($connectionId, $topic, $userId);
     }
 
     /**
@@ -389,37 +389,26 @@ class Pusher implements WampServerInterface
         $authToken = preg_replace('/[^a-zA-Z0-9\-]+/', '', $params['authToken']);
         $userId = preg_replace('/[^a-zA-Z0-9\-]+/', '', $params['userId']);
 
-        $result = $this->getUserIdByAuthToken($authToken);
-
-        if (empty($result)) {
+        if (!$authToken || !$userId) {
             $this->closeConnection($conn);
 
             return;
         }
 
-        if ($result !== $userId) {
-            $this->closeConnection($conn);
+        $command = "$this->phpExecutablePath command.php AuthTokenCheck $authToken $userId 2>&1";
 
-            return;
-        }
+        $process = new Process($command);
+        $process->start();
 
-        $this->subscribeUser($conn, $userId);
-    }
+        $process->on('exit', function ($exitCode) use ($conn, $userId) {
+            if ($exitCode !== 0) {
+                $this->closeConnection($conn);
 
-    /**
-     * @param string $authToken
-     * @return string
-     */
-    private function getUserIdByAuthToken($authToken)
-    {
-        /** @var string|null|false $result */
-        $result = shell_exec($this->phpExecutablePath . " command.php AuthTokenCheck " . $authToken);
+                return;
+            }
 
-        if ($result === null || $result === false) {
-            return '';
-        }
-
-        return $result;
+            $this->subscribeUser($conn, $userId);
+        });
     }
 
     /**
@@ -564,4 +553,23 @@ class Pusher implements WampServerInterface
     {
         echo "[" . date('Y-m-d H:i:s') . "] " . $msg . "\n";
     }
+
+    private function addTopicForUser(string $connectionId, Topic $topic, string $userId): void
+    {
+        $topicId = $topic->getId();
+
+        if (!$topicId) {
+            return;
+        }
+
+        if (!in_array($topicId, $this->connectionIdTopicIdListMap[$connectionId])) {
+            if ($this->isDebugMode) {
+                $this->log("$connectionId: add topic $topicId for user $userId");
+            }
+
+            $this->connectionIdTopicIdListMap[$connectionId][] = $topicId;
+        }
+
+        $this->topicHash[$topicId] = $topic;
+    }
 }
diff --git a/composer.json b/composer.json
index 7961ee6b58..299240ba78 100644
--- a/composer.json
+++ b/composer.json
@@ -55,7 +55,8 @@
         "league/oauth2-client": "^2.8",
         "symfony/mailer": "^6",
         "league/html-to-markdown": "^5.1",
-        "psr/clock": "^1.0"
+        "psr/clock": "^1.0",
+        "react/child-process": "^0.6.6"
     },
     "require-dev": {
         "phpunit/phpunit": "^11.5",
diff --git a/composer.lock b/composer.lock
index 010f155915..e7ea44b9ee 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "6d5fe3b3c8776218dbb0b02e45ff4cde",
+    "content-hash": "520a5b72c40d1805a85b374259d7d63a",
     "packages": [
         {
             "name": "async-aws/core",
@@ -5328,6 +5328,81 @@
             ],
             "time": "2022-11-30T15:59:55+00:00"
         },
+        {
+            "name": "react/child-process",
+            "version": "v0.6.6",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/reactphp/child-process.git",
+                "reference": "1721e2b93d89b745664353b9cfc8f155ba8a6159"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/reactphp/child-process/zipball/1721e2b93d89b745664353b9cfc8f155ba8a6159",
+                "reference": "1721e2b93d89b745664353b9cfc8f155ba8a6159",
+                "shasum": ""
+            },
+            "require": {
+                "evenement/evenement": "^3.0 || ^2.0 || ^1.0",
+                "php": ">=5.3.0",
+                "react/event-loop": "^1.2",
+                "react/stream": "^1.4"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^9.6 || ^5.7 || ^4.8.36",
+                "react/socket": "^1.16",
+                "sebastian/environment": "^5.0 || ^3.0 || ^2.0 || ^1.0"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "React\\ChildProcess\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Christian Lück",
+                    "email": "christian@clue.engineering",
+                    "homepage": "https://clue.engineering/"
+                },
+                {
+                    "name": "Cees-Jan Kiewiet",
+                    "email": "reactphp@ceesjankiewiet.nl",
+                    "homepage": "https://wyrihaximus.net/"
+                },
+                {
+                    "name": "Jan Sorgalla",
+                    "email": "jsorgalla@gmail.com",
+                    "homepage": "https://sorgalla.com/"
+                },
+                {
+                    "name": "Chris Boden",
+                    "email": "cboden@gmail.com",
+                    "homepage": "https://cboden.dev/"
+                }
+            ],
+            "description": "Event-driven library for executing child processes with ReactPHP.",
+            "keywords": [
+                "event-driven",
+                "process",
+                "reactphp"
+            ],
+            "support": {
+                "issues": "https://github.com/reactphp/child-process/issues",
+                "source": "https://github.com/reactphp/child-process/tree/v0.6.6"
+            },
+            "funding": [
+                {
+                    "url": "https://opencollective.com/reactphp",
+                    "type": "open_collective"
+                }
+            ],
+            "time": "2025-01-01T16:37:48+00:00"
+        },
         {
             "name": "react/dns",
             "version": "v1.13.0",