Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwC/D0ucTzeop3Dw/krQRtL/Wv/Y7UBAIhLHsLkLh4baQC/YdDHN7E5cEGHi… (844 chars)"
  }
}