protected override void ExecuteCmdlet()
 {
     if (Identity != null)
     {
         SubscriptionsUtility.DeleteSubscription(Identity.SubscriptionId, AccessToken);
     }
 }
        protected override void ExecuteCmdlet()
        {
            var subscription = SubscriptionsUtility.UpdateSubscription(Identity.SubscriptionId, ExpirationDate, AccessToken);

            WriteObject(subscription);
        }