curl --location --request POST 'https://saas-open.vhall.com/v3/interacts/qa/batch-delete-qa' \
--header 'platform;' \
--form 'webinar_id=""' \
--form 'app_key=""' \
--form 'sign_type=""' \
--form 'signed_at=""' \
--form 'sign=""'
{
"code": "string",
"msg": "string",
"data": "string"
}