Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAGDQCvfGM4eBg6jMlNXndo97p+WTP3sHe7l/eoLlcKDWTIHVDhzI1X1P+xG6P8… (1,748 chars)"
  }
}