curl --request POST \
  --url https://api.hubapi.com/integrators/timeline/v3/events/batch/create \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "inputs": [
    {
      "eventTemplateId": "<string>",
      "id": "<string>",
      "tokens": {},
      "customObjectTypeId": "<string>",
      "domain": "<string>",
      "email": "<string>",
      "extraData": {},
      "objectId": "<string>",
      "timestamp": "2023-11-07T05:31:56Z",
      "utk": "<string>"
    }
  ]
}
'

{
  "completedAt": "2023-11-07T05:31:56Z",
  "results": [
    {
      "eventTemplateId": "<string>",
      "id": "<string>",
      "objectType": "<string>",
      "tokens": {},
      "createdAt": "2023-11-07T05:31:56Z",
      "customObjectTypeId": "<string>",
      "domain": "<string>",
      "email": "<string>",
      "extraData": {},
      "objectId": "<string>",
      "timelineIFrame": {
        "headerLabel": "<string>",
        "height": 123,
        "linkLabel": "<string>",
        "url": "<string>",
        "width": 123
      },
      "timestamp": "2023-11-07T05:31:56Z",
      "utk": "<string>"
    }
  ],
  "startedAt": "2023-11-07T05:31:56Z",
  "links": {},
  "requestedAt": "2023-11-07T05:31:56Z"
}