curl --location 'notify_url' \
--header 'Signature-Type: RSA' \
--header 'Signature-Type: RSA' \
--header 'Signature-Data: 签名值Signature-Data = RSA(MD5(完整JSON报文))' \
--header 'Signature-Data;' \
--header 'mch_id: 2020042200284052' \
--header 'sp_no;' \
--header 'timestamp: 20221109111509' \
--header 'Content-Type: application/json;charset=utf-8' \
--data '{
"mch_id": "string",
"user_id": "string",
"oid_userno": "string",
"txn_seqno": "string",
"platform_txno": "string",
"stat": "string",
"msg": "string",
"account_level": "string",
"account_type": "string",
"open_account_will_url": "string"
}'