protected async Task <bool> UserHasAlreadyReceivedNotification(User user, Event mobEvent)
{
// Get list of notification events user has already received for the event
var notifications = await UserNotificationRepository.GetUserNotifications(user.Id, mobEvent.Id).ConfigureAwait(false);
// Verify that the user has not already received this type of notification for this event
return(notifications.Any(un => un.UserNotificationTypeId == (int)NotificationType));
}