{
  "id": "<string>",
  "seq": 123,
  "type": "target.contacted",
  "apiVersion": "2",
  "createdAt": "2026-09-14T10:32:00.000Z",
  "object": {
    "type": "campaign",
    "id": "<string>",
    "url": "<string>"
  },
  "data": {
    "threadId": "<string>",
    "messageId": "<string>",
    "contactId": "<string>",
    "stepNumber": 123
  }
}