public function onSiteWebmasterCreate(SiteEvent $event)
    {
        /* @var UserInterface $user */
        $user = $this->entityManager->getStorage('user')->load($event->getArgument('webmaster_id'));

        if ($user->status == 0) {
            $this->tokenManager->sendTokenMail($user, 'ucms_user', 'new-account-disabled');
        } else {
            $this->tokenManager->sendTokenMail($user, 'ucms_user', 'new-account-enabled');
        }
    }