Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwF5I/WCNcCehcFWNV7WQwQdbOgq4sA7Zg9V7+S2riP3ayF4GREyEVgXYDgs… (844 chars)"
  }
}