/// <summary>
 /// Gets subscribed push requests for a user.
 /// </summary>
 /// <param name="pushRequestSubscriptionManager">Push request subscription manager</param>
 /// <param name="user">User.</param>
 public static List <PushRequestSubscription> GetSubscribedPushRequests(this IPushRequestSubscriptionManager pushRequestSubscriptionManager, IUserIdentifier user, int skipCount = 0, int maxResultCount = int.MaxValue)
 {
     return(AsyncHelper.RunSync(() => pushRequestSubscriptionManager.GetSubscribedPushRequestsAsync(user, skipCount, maxResultCount)));
 }