private static void UpdateUserUiCulture(HttpRequestBase request, string uiCulture, IIdentity userIdentity)
        {
            //Andriy: Difficult to test this method, not fully clear how to correct inject database access in this code
            string aspNetUserId = userIdentity.GetUserId();
            //Update user Ui Culture in database
            var        db   = request.GetOwinContext().Get <HellolingoEntities>();
            AspNetUser user = db.AspNetUsers.Find(aspNetUserId);

            if (user == null)
            {
                Log.Warn(LogTag.CultureAwareActivator_UserNotFound, request, new { AspNetUserId = aspNetUserId });
                return;
            }
            user.UiCulture = uiCulture;
            db.SaveChanges();
            //Update user claims with new Ui Culture.
            var signInManager = request.GetOwinContext().Get <ApplicationSignInManager>();

            signInManager.AuthenticationManager.SignOut(DefaultAuthenticationTypes.ApplicationCookie);
            var            applicationUserManager = request.GetOwinContext().GetUserManager <ApplicationUserManager>();
            ClaimsIdentity newUserIdentity        = user.GenerateUserIdentity(applicationUserManager);

            signInManager.AuthenticationManager.SignIn(newUserIdentity);
        }