public ActionResult <PushSubscription> Post([FromBody] PushSubscription subscription)
        {
            var rid = (HttpContext.User.Identity as ClaimsIdentity).FindFirst("userId").Value;
            var wrp = new SubscriptionWrapper {
                Subscription = subscription
            };

            if (rid != null)
            {
                wrp.Owner = rid;
            }
            return(_pushService.Insert(wrp));
        }