Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQAP/+Cc0UaJrvf8zgG+D1pDsEad84r/c0OHEgk0LYHZWH4Z5NxHY+PzKtd8… (1,748 chars)"
  }
}