curl --request PATCH \
  --url https://{host}/v2/workspaces/slug:ai-governance-v2/webhooks/v1/announcements/{announcementId} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "title": "<string>",
  "summary": "<string>",
  "content": "<string>",
  "icon": "<string>",
  "link": "<string>",
  "targets": {},
  "status": "draft",
  "expires_at": "2023-11-07T05:31:56Z"
}
'

{
  "id": "<string>",
  "updated": true
}