private void Restart()
        {
            var      activeSubscriptions = _dbClien.AllActive();
            Observer observer;

            foreach (var i in activeSubscriptions)
            {
                observer             = new Observer(_configPath, i.UserID, i.Location, i.RequestsPerHour, _consumer, _publisher);
                observer._updateTime = Convert.ToInt32(i.LastSent);
                _subject.Attach(observer);
            }
        }