Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwH8btE3Tf4f/drJ3e8NOcvZWbTVSW0bTb1P8fEt1fyNLw4DGkZ4XDXYz1CF… (844 chars)"
  }
}