请求参数：{"access_token":"08011218474244734f592b4f4d316d67463061497946743754773d3d","appid":"tt27db5166b8d19c4902","openid":"_000mQTMbnn5rtiars56pWtH9RuenuNlr5nq","pf":"android","ts":1734145588,"zone_id":"1","mp_sig":"5705eaf96f853f2ddb11359ec0e9ad36a611f2e323186e4a4fa2c3edc646505b"}
请求地址：https://developer.toutiao.com/api/apps/game/wallet/get_balance 
返回解析后：(    [balance] => 0    [cost_sum] => 0    [errcode] => 90009    [errmsg] => check sign failed
    [gen_balance] => 0    [present_sum] => 0    [save_amt] => 0    [save_sum] => 0]
对的支付key 是对的，  用示例的参数  带入获取的签名也和文档一致
服务器时间也是同步的