public function actionToggleUnsubscribed($id)
 {
     $member = MarketingListMember::GetById(intval($id));
     ControllerSecurityUtil::resolveAccessCanCurrentUserReadModel($member->marketingList);
     $member->unsubscribed = (bool) (!$member->unsubscribed);
     if (!$member->unrestrictedSave()) {
         throw new FailedToSaveModelException();
     }
 }