curl --location --request POST 'https://saas-open.vhall.com/v3/webinars/virtual/accumulation' \
--header 'platform;' \
--header 'Content-Type: application/x-www-form-urlencoded' \
--data-urlencode 'pv=20' \
--data-urlencode 'online=10' \
--data-urlencode 'webinar_id=658171537' \
--data-urlencode 'app_key=' \
--data-urlencode 'sign_type=' \
--data-urlencode 'signed_at=' \
--data-urlencode 'sign='
{
"code": 200,
"msg": "",
"data": {},
"request_id": "4ac5dc61-ea08-4c64-9fd2-ad8fb81a7736"
}