Your question doesn't really make sense. You are specifying the data that you want back from the API. What gain would be using key:value syntax be in this situation? The request would just be littered with `"requested_data": true` which is just wasteful.
Well, you could do arrays of strings and objects instead of key:value pairs. Although I suppose there would be a lot of superfluous quotes, and part of the point is to optimize for mobile...
