{
"mchId": "88101085",
"subMchId": "88101085",
"nonceStr": "LsLFojFEdOuvFCvEzsJOcNUk1JNX1Nb6",
"mediaUrl": "https://api.mch.weixin.qq.com/v3/merchant-service/images/ChsyMDAwMDAwMjAyNDA3MTkxNTAxOTI1NTQyOTMYACCyr%2Bi0BigBMAE4AQ%3D%3D",
"sign": "V/3/D9LRvX32uycrgEUwAUOWSPPAybg4XcoNJ+pQYnVFtRv8f+2zB5pQshk8xpvnoIXgc9xuVpCegz5E1PHNZ4Vdc739qVhX2AFlpHdTTJwmiwiaIwaLKSf8sGLz3qxrTuJHCMHh3GtjXc++CQfU3eZM5wBKRY+nWIe3c3J7X7IBdanMWzvXqOHRheIL0Cx4vUyzVjWSUwO9CMABw7PmVNHOGOmkD20Rk8xKc8fjQ7cG3+lYjhXefyAubJWS01uvwdWOeRWPuFy9Cn6DYql/GCYDjA8ppJbRsqOrOm2qmwkIqBnjc1QWUudQ2lFtqnstpJJWc5izlgMI8my+5mNzZQ==",
"signType": "RSA"
}