Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwE1rLpN8r4cH7zQ7gZxdTB4fRbPuBvIe0JBkmD6f4ESQmz4X8ai6lpGGXKe… (844 chars)"
  }
}