curl --request GET \
  --url https://api.topsort.com/public/v1/webhooks/webhooks/{webhook-id} \
  --header 'Authorization: Bearer <token>'

{
  "channel": "campaign:create",
  "id": "<string>",
  "marketplaceId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "secret": "<string>",
  "url": "<string>"
}