curl --request GET \
  --url https://app.harmonica.chat/api/v1/integrations/telegram/groups \
  --header 'Authorization: Bearer <token>'

{
  "data": [
    {
      "group_id": "<string>",
      "created_at": "2023-11-07T05:31:56Z",
      "group_name": "<string>",
      "topic_id": 123
    }
  ]
}