private function addRequestParamForEvent(Notifications $notifications, $eventName, ParameterBag $params)
 {
     $event = $notifications->getNotificationEvent($eventName);
     if ($event->isActive()) {
         $params->set('events[' . $eventName . ']', 'true');
     } else {
         $params->set('events[' . $eventName . ']', 'false');
     }
 }