Do not json encode it when it is being encoded within the publish class

Author: lionslair

tests/PubSub/RedisDriverTest.php

@@ -30,12 +30,12 @@ public function redis_listener_responds_properly_on_payload()
             ],
         ];
 
-        $payload = json_encode([
+        $payload = [
             'appId' => '1234',
             'event' => 'test',
             'data' => $channelData,
             'socket' => $connection->socketId,
-        ]);
+        ];
 
         $this->getSubscribeClient()->onMessage('1234:test-channel', $payload);