Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwCTPjqdjcoR5SF/PTjZpXU9Z0+V5GF4QWkHx9TxcFV5MQRc2A2/vT9kJ7P6… (844 chars)"
  }
}