iterate thru your json, building a script file using curl and the parse rest api that does following type curl post to parse.class that you need .
curl -X POST
-H "X-Parse-Application-Id: YOUR_APP_ID"
-H "Content-Type: application/json"
-d '{"score":1337,"playerName":"Sean Plott","cheatMode":false}'
http://localhost:1337/parse/classes/${class}
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