curl --location --request POST '/api/xjcmcc/product/subscribe' \
--data-urlencode 'access_token={{access_token}}' \
--data-urlencode 'user_name=test100@xju.edu.cn' \
--data-urlencode 'product=1' \
--data-urlencode 'is_use='{
"code": 0,
"message": "ok",
"version": "v2.0.0"
}