curl --location --request POST 'https://sb-openapi.hitechpay.vn/v2/agreement/query_user' \
--header 'Content-Type: application/json' \
--data-raw '{
"app_id": 0,
"access_token": "string",
"req_date": 0,
"mac": "string"
}'{
"return_code": 0,
"return_message": "string",
"sub_return_code": 0,
"sub_return_message": "string",
"phone": "string"
}