{"code":100,"message":"验签出错，建议检查签名字符串或签名私钥与应用公钥是否匹配，网关生成的验签字符串为：app_id=2021004188625113,nonce=f49467ce-faa2-f724-4aa5-bd410c58d2e7,timestamp=1770378520074\nPOST\n\/v3\/alipay\/user\/certify\/open\/initialize\n{\"biz_code\":\"FACE\",\"identity_param\":{\"cert_type\":\"IDENTITY_CARD\",\"identity_type\":\"CERT_INFO\"},\"merchant_config\":{\"face_reserve_strategy\":\"reserve\",\"return_url\":\"https:\\\/\\\/opendocs.alipay.com\\\/\"},\"outer_order_no\":\"HAOLIANG1770378520\"}\n"}