private async Task SendEmailRemoveCityFollowerAsync(string email, DataAccess.Entities.City city)
 {
     var cityUrl      = _repositoryWrapper.GetCitiesUrl + city.ID;
     var emailContent = _emailContentService.GetCityRemoveFollowerEmail(cityUrl, city.Name);
     await _emailSendingService.SendEmailAsync(email, emailContent.Subject, emailContent.Message,
                                               emailContent.Title);
 }