Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwBu/e3mN33guuvEpQT1C7uJ6IS6aOBc8Yfl+fHGWKyW2E6rWYEZIG8gGCyp… (844 chars)"
  }
}