public ActionResult UnSubscribeAll()
        {
            try
            {
                facetService.RemoveAll(FacetIDs.Subscriptions);
                facetService.RemoveAll(FacetIDs.SubscriptionTokens);
            }
            catch (Exception ex)
            {
                Log.Error($"Unable to remove all notification subscription from the current contact facets", ex, this);
                return(new HttpStatusCodeResult(HttpStatusCode.InternalServerError, ex.Message));
            }

            return(new HttpStatusCodeResult(HttpStatusCode.OK));
        }