Well that was easy.

gistfile1.txt

var request = require('request');

var api = "https://api.parse.com/2/client_function";


var requestData = {
    data: {
        sound: 'yo.mp3',
        to: "USERNAME",
        udid: "",
    },

    function: "yo",
    iid: "",
    session_token: "",
    uuid: ""
};

var opts = {
	url: api, 
	json: true, 
	body: requestData, 
	headers: {
		'User-Agent': 'Android', 
		'Authorization': 'FILL_IN_AUTHORIZATION'
	},
}

request.post(opts, function(err, response, body){
	console.log(response); 
});