Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwDxp+yVKzhN6p2IWOwfDwQVmuHLceBUGL8iNY3/YfVSFDzK/fgI3Z8K5Z6p… (844 chars)"
  }
}