Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGfs7r4Dc6o6d0zRtVweWS/DaibwJPdh/J7xWQRcO3lJDa5IdUf1a7GN8q6… (844 chars)"
  }
}