Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwH813xHihnEkBIo+wT8t4KaH6e3X6VvK0Ri2bPKEyX1LRZGNuZ85c1eR55X… (844 chars)"
  }
}