curl --request POST \
  --url https://cockroachlabs.cloud/api/v1/roles/{user_id}/{resource_type}/{resource_id}/{role_name} \
  --header 'Authorization: Bearer REPLACE_BEARER_TOKEN'

{
  "group_roles": [
    {
      "group_names": [
        "<string>"
      ],
      "role": {
        "resource": {
          "id": "<string>"
        }
      }
    }
  ],
  "roles": [
    {
      "resource": {
        "id": "<string>"
      }
    }
  ]
}

{
  "code": 123,
  "details": [
    {
      "@type": "<string>"
    }
  ],
  "message": "<string>"
}