curl --location --request POST '/AG_MerchantManagementSystem_Core/agent/api/gen' \
--data-urlencode 'version=1.0' \
--data-urlencode 'clientCode=61165070' \
--data-urlencode 'MAC={{MAC}}' \
--data-urlencode 'contractNo=ZY20230406000002002' \
--data-urlencode 'messageType=DOWNCONTRACT'
{ "messageType": "DOWNCONTRACT", "clientCode": "61165070", "retCode": "0000", "retMsg": "操作成功", "version": "1.0", "contractData": "JVBERi0xLjcKJeLjz9MKMSAwIG9iago8PC9TdWJ0eXBlL0Zvcm0vRmlsdGVyL0ZsYXRlRGVjb2Rl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\nRm9udDw8L