public async void SendDeleteUserKeysNodeNoticeAsync(IEnumerable <long> keysId, long userId)
 {
     try
     {
         DeleteUserKeysNodeNotice notice = new DeleteUserKeysNodeNotice(keysId, userId);
         await SendNoticeToNodesAsync(notice).ConfigureAwait(false);
     }
     catch (Exception ex)
     {
         Logger.WriteLog(ex);
     }
 }
 public DeleteUserKeysNodeNoticeHandler(NodeNotice notice, NodeConnection current, IKeysService keysService)
 {
     this.notice      = (DeleteUserKeysNodeNotice)notice;
     this.current     = current;
     this.keysService = keysService;
 }