Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwBrFiHPL0LS7IuRTXzSqDzXpF4HMRkGClU6UNwzB5jRgwhXu649xQYvH5+K… (844 chars)"
  }
}