Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwF9UihkcRUD4tA6kYz8B2f7RkgQmqZIx8ci5tZdHZamSXsQtJRx2C7jZ+BQ… (844 chars)"
  }
}