按照api文档和v3的签名文档发起请求，报错 ’商户号必填‘，商户号（mchid）已经在 http的请求头Authorization里了，有大神知道吗

get请求地址

https://api.mch.weixin.qq.com/v3/marketing/favor/users/oeQBE6qnUg2sYRmzPdnqV0xxxxxx/coupons/?appid=wx523ea60c33bxxxxx

Authorization头

Authorization: WECHATPAY2-SHA256-RSA2048 mchid="164028xxxx",nonce_str="8CLmbpjWM7pxpw3ULz72",timestamp="1684401261",serial_no="29F75413EF4F017B784E382A3D850035xxxxxxxx",signature="GtwnnZBcyLSZqkftI3zg6jq67cEwuo52NaBNgFF85Hz4YjuKhV5J+lLYSDUGb98mynzPF5CHbw9ju+4ghqlxu5oVhouOxrQG2oBT9ZyiHuNt4DTfZkzIPqLKVytjasNMOLDKkhs6j9Ode8XNMCSowLQ7Fvkl45\/iIVV1jMCDrOTUQ8UUmx7PXCjlRDTCClQd\/AaNBhkPBVUzYiP6uV\/\/C0X3qF\/ilBPxAVk7A5CdpTEfCJFa7uvPxI9el66D6M6ZIb5etVSgqE\/7NJK\/+RasA2MII7oIzX1\/+ZELfu2TOOY9dHBTU4Dca06mFhvdm78Y9Mlbhl98HU4G5uT19oEdKA=="