curl --request GET \
  --url https://api.x.com/2/tweets/search/webhooks \
  --header 'Authorization: Bearer <token>'

{
  "data": {
    "links": [
      {
        "application_id": "<string>",
        "business_user_id": "<string>",
        "fields": [
          "<string>"
        ],
        "instance_id": "<string>",
        "webhook_id": "<string>"
      }
    ]
  },
  "errors": [
    {
      "detail": "<string>",
      "status": 123,
      "title": "<string>",
      "type": "<string>"
    }
  ]
}