\JWT::encode([
    'tokens'      => [
	    'dasasd8962ghgre'
    ],
    'bundleId'    => 'ru.test.baundle',
    'message'     => 'Service is ready',
    'title'       => 'Hello, guys!',
    'sound'       => null,
    'extraParams' => [
	    'acme' => ''
    ],
], $this->getJwtKey());

/* Create  TCP/IP socket. */
$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
if ($socket === false) {
    $m = "Can't create socket through socket_create(): couse: " . socket_strerror(socket_last_error());
    \Log::error($m);
    throw new \Exception($m);
}

$result = socket_connect($socket, $this->getPushServiceIp(), $this->getPushServicePort());
if ($result === false) {
    $m = "Can't execute socket_connect().\nCause: ($result) " . socket_strerror(socket_last_error($socket)) . "\n";
    \Log::error($m);
    throw new \Exception($m);
}

$message = \JWT::encode([
           'platform'    => 'android',
           'tokens'      => ['dasdw534535'],
           'bundleId'    => 'ru.bundle.name',
           'message'     => 'Have a nice day!',
           'title'       => 'Hello',
           'sound'       => '',
           'extraParams' => [
                'acme' => 'Some param'
           ],
       ], '<JWT-KEY>')
socket_write($socket, $message, strlen($message));
$message = "\n";
socket_write($socket, $message, strlen($message));

$response = socket_read($socket, 2048);

socket_close($socket);