Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwAmkb5exiNdVeqQVrTbNgB7BkxC1eMJwE5MHl/BgDz6yjfqMZyi8HZoT4bC… (844 chars)"
  }
}