public void NotifySubsribersAbout(Item item)
        {
            var tag = _parser.Parse(item);
            var users = _userRepository.GetUsersForCountry(tag);

            foreach (var user in users)
            {
                SendMailToUser(user, item.Title);
            }
        }
 public string Parse(Item item)
 {
     var hashTag = item.Title.Split(new[] {' '}).Where(token => token.StartsWith("#")).FirstOrDefault();
     if (!string.IsNullOrEmpty(hashTag)) return hashTag.Trim(new[] {'#'});
     return "";
 }