curl --location --request POST 'https://saas-open.vhall.com/v3/users/child/count' \
--header 'platform: 15' \
--header 'Content-Type: application/x-www-form-urlencoded' \
--data-urlencode 'app_key=75844ad7a2a5f2b421c04a125b197996' \
--data-urlencode 'sign={{sign}}' \
--data-urlencode 'signed_at={% mock 'timestamp' , 's' %}' \
--data-urlencode 'sign_type=0'{
"code": 200,
"msg": "",
"data": {
"count": 5,
"child_limit": 10,
"available_num": 5
},
"request_id": "c7713b2a-a60c-4f37-88e8-7f9d62968a1b"
}