Initial commit carried over from private repo. This is V2.

code/MessengerApi/Models/Http/SendRequest.cs

@@ -0,0 +1,13 @@
+namespace MessengerApi.Models.Http
+{
+    public class SendRequest
+    {
+        public Guid? ToUserId { get; set; }
+
+        public string Payload { get; set; }
+
+        public string PayloadType { get; set; }
+
+        public int? PayloadLifetimeInSeconds { get; set; }
+    }
+}