Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwB7n4uHXSvEYWMFva0ypjyOFo8aSa+3gTbaWxsQPIDqVlRFd+VO9nwd5IDk… (844 chars)"
  }
}