{
  "type": "object",
  "description": "Error response when a publisher uses opt_in routing and the user has not opted in",
  "required": [
    "error",
    "message",
    "publisher",
    "proxy_region",
    "opt_in_endpoint"
  ],
  "properties": {
    "error": {
      "type": "string"
    },
    "message": {
      "type": "string"
    },
    "opt_in_endpoint": {
      "type": "string"
    },
    "proxy_region": {
      "type": "string"
    },
    "publisher": {
      "type": "string"
    }
  }
}