Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAGDQD6f4HPXsarCty7XJzVNNb5QhXfvCI0rpB/mNEmUTfhTw+G0ZS4vbyd7Ftd… (1,748 chars)"
  }
}