Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwH/p9fFmoa7mhKpIBGG9PEPRLJkh9HHw6Ln/XJ9FxrdBwBnoXhSll9Hc2oJ… (844 chars)"
  }
}