curl --location --request POST '/AG_MerchantManagementSystem_Core/agent/api/gen' \
--form 'version="1.0"' \
--form 'clientCode="63754675"' \
--form 'MAC="{{MAC}}"' \
--form 'messageType="ACTIVITYQUERY"' \
--form 'applicationId="wxe34a0d3a2d1c7615"'
{
"messageType": "ACTIVITYQUERY",
"clientCode": "63754675",
"retCode": "2001",
"retMsg": "申请单编号不存在",
"version": "1.0",
"MAC": "DB826A4B0B82FD575C0F62B975C93583"
}