SOURCE

var data =  {
    couseId: "1d83d44178394bf68d6da946fb6cdd97",
    endFlag: "1",
    userId: "45cef9d5e43e47e8938e38b52aa4334a",
    watchTime: 1000
};
console.info(JSON.stringify(data));
var encrytData = abc("NiEShUaishuAiXJy","yJXiAuhsiaUhSEiN",JSON.stringify(data));
console.info(encrytData);