curl --location --request POST 'http://dev-cn.your-api-server.com/api/design/clear' \
--header 'x-api-key: {{apiKey}}' \
--header 'x-channel;' \
--header 'x-token: {{token}}' \
--data-urlencode 'user_design_id={{designID}}'
{
"code": 0,
"data": [],
"msg": "ok"
}