curl --request GET \
  --url https://api.siftstack.com/api/v2/user-groups:get-for-assets \
  --header 'Authorization: Bearer <token>'

{
  "userGroups": [
    {
      "name": "<string>",
      "isDefault": true,
      "isExternal": true,
      "userGroupId": "<string>",
      "roleId": "<string>",
      "resources": {
        "allAssets": true,
        "assetIds": [
          "<string>"
        ]
      },
      "userIds": [
        "<string>"
      ]
    }
  ],
  "roles": [
    {
      "roleId": "<string>",
      "name": "<string>",
      "description": "<string>",
      "roleOrder": 123
    }
  ]
}