Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHdnpED3Mq6LUJG7k5PCvu2kFz6kAqvyf3xkFwrLPMFu05ydWyDXSqgv0dJ… (844 chars)"
  }
}