curl --location --request POST '/AG_MerchantManagementSystem_Core/agent/api/gen' \
--form 'version="1.0"' \
--form 'clientCode="48310856"' \
--form 'MAC="{{MAC}}"' \
--form 'alipayBody="{\"order_no\":\"202209011001598259\"}"' \
--form 'messageType="ALIAUTHCLOSE"'
{
"version": "string",
"clientCode": "string",
"MAC": "string",
"retCode": "0000",
"retMsg": "string",
"messageType": "string",
"data": "string"
}