curl --request GET \
  --url https://api.altostrat.io/radius/users/{userId}/groups \
  --header 'Authorization: Bearer <token>'

{
  "data": [
    {
      "id": "rad_grp_01HGM5V65A5A5A5A5A5A5A5A5B",
      "group_name": "Engineers",
      "user_count": 15,
      "check_attributes": "<any>",
      "reply_attributes": "<any>",
      "metadata": "<any>",
      "tags": "<any>",
      "created_at": "2023-11-07T05:31:56Z",
      "updated_at": "2023-11-07T05:31:56Z"
    }
  ],
  "pagination": {
    "per_page": 25,
    "has_more": true,
    "next_cursor": "eyJwayI6eyJT..."
  },
  "links": {
    "first": "https://api.altostrat.io/radius/users?per_page=25",
    "next": "https://api.altostrat.io/radius/users?per_page=25&cursor=eyJwayI6eyJT..."
  }
}