curl --location --request GET '/api/ncepu/package/products-balance?user_name=yuantong&access_token=FPFBWAk5llPf3Phd5drTiez9Uks1749J'
{ "code": 0, "message": "ok", "version": "v1.5.8", "data": { "user_balance": "0.00" } }