Actually fairly simple once I stopped using facebooksharp and facebook# and just used a rest client or my own http request.
var client = new RestClient("https://graph.facebook.com");
var request = new RestRequest("app/objects/app_name:object_type?access_token=" + AppToken);
var response = client.Execute(request).Content;
var obj = JsonConvert.DeserializeObject<RootObject>(response);