curl --request GET \
  --url https://sandbox-revo-api.raliopay.com/api/v1/reference/user-relations

{
  "pagination": {
    "next": "<string>",
    "numPages": 123,
    "page": 123,
    "pageSize": 123,
    "previous": "<string>",
    "total": 123
  },
  "relations": [
    {
      "name": "Friend",
      "slug": "FRIEND"
    }
  ]
}