>>If you are building your object in C# then see this answer : http://stackoverflow.com/questions/16898731/creating-an-json-array-in-c-sharp
>
>I actually figured this out and I got the response now! I am going to examine now what I got and how should I parse it back (e.g. I don't want to define the object I'm going to get in case it changes - or do you think I should)?

I'd define it in C# - if it changes it will probably break regardless.....