MQTTnet - pass data to view during UseApplicationMessageReceivedHandler

Question

1. how to save data in temp and pass to view

        var messageBuilder = new MqttClientOptionsBuilder()
           .WithClientId(clientId)
           .WithCredentials(mqttUser, mqttPassword)
           .WithTcpServer(mqttURI, mqttPort)
           .WithCleanSession();
   
        var options = mqttSecure
          ? messageBuilder
            .WithTls()
            .Build()
          : messageBuilder
            .Build();
   
        var managedOptions = new ManagedMqttClientOptionsBuilder()
          .WithAutoReconnectDelay(TimeSpan.FromSeconds(5))
          .WithClientOptions(options)
          .Build();
   
        IManagedMqttClient client = new MqttFactory().CreateManagedMqttClient();
   
        client.StartAsync(managedOptions).GetAwaiter().GetResult();
        client.SubscribeAsync("Lestle/topic");
        string payload = "";
        client.UseApplicationMessageReceivedHandler(e =>
        {
            try
            {
                string topic = e.ApplicationMessage.Topic;
   
                if (string.IsNullOrWhiteSpace(topic) == false)
                {
                    payload = Encoding.UTF8.GetString(e.ApplicationMessage.Payload);
   
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message, ex);
            }
            if (payload != "")
            {
                var data = (JObject)JsonConvert.DeserializeObject(payload);
                var towerlights = data["towerlight"].Children();
                foreach (var towerlight in towerlights)
                {
   
                    ViewBag.Line1 = towerlight["Line1"].Value<string>().ToString();
                    ViewBag.Line2 = towerlight["Line2"].Value<string>().ToString();
                    ViewBag.Line3 = towerlight["Line3"].Value<string>().ToString();
                    ViewBag.Line4 = towerlight["Line4"].Value<string>().ToString();
                }
                RedirectToAction("Index");
            }
   
        });