Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQBD/mE75y1flaLbxcAgJSPzE1dJ3FEPz0cFrhsjqK9cTlC5SyuNyqjFpAoB… (1,748 chars)"
  }
}