curl --location --request POST 'https://saas-open.vhall.com/v3/interacts/sign/set-end-sign' \
--header 'platform;' \
--data-urlencode 'webinar_id=509154312' \
--data-urlencode 'app_key=' \
--data-urlencode 'sign_type=' \
--data-urlencode 'signed_at=' \
--data-urlencode 'sign='
{
"code": 200,
"msg": "",
"data": {},
"request_id": "c63f8e0b-7d2d-4470-b7d5-1d4a648043c1"
}