curl --request GET \
  --url https://identity.xmsmartlink.com/api/real-person/groups \
  --header 'X-Access-Token: <api-key>'

{
  "code": 123,
  "message": "<string>",
  "data": {
    "items": [
      {
        "group_id": "<string>",
        "artist_name": "<string>",
        "artist_desc": "<string>",
        "authorized_at": "<string>"
      }
    ]
  }
}