Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwCH1YqjOQHcSUtDFuka6o1je/qJPLXJ2ZGk/dM6Yy4d2S+VA5zKDcN7WgOE… (844 chars)"
  }
}