Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwAIziJ04MO3bz1mTWM9ypR6eipjmAv+Hiqk0xSdhXVX5wIWLa6zOl6Vx9q3… (844 chars)"
  }
}