sessionKey：p2kWCHBPoA7Uiofe0nA1yw==
appKey：Adw65MZ8wer3Kncm2GFHOLkvJxvVviHZ
mode: "retail_pay_goods"
paySig: "a863b595b4ea1046b423682dcfc14ad4a53712c1e1073a9ed47ce15e7f4c0229"
signData: "{"description":"力士沐浴露88889999","amount":{"order_amount":50000,"currency":"CNY"},"mchid":"1709304654","out_trade_no":"1976-0DDT20250318110432030-56966","env":0}"
signature: "dbfcf98c44ff8254931ba91e5115dafa5971d5319d7de8f0d8c06de856e266f1"
可以参考QA自助排查：https://docs.qq.com/doc/DQ1dXWWdNYXhJYnpG
YrequestCommonPayment;fail webapi_wxa_createmidasorder:fail invalid signature [RID: 42a1fa27-1743998389]
拿官网的例子测试 生成的结果是对的，开发换成真实参数 就报错
已处理:calcPaySig("requestCommonPayment", signData, key);