Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwH/ZxHd3nHwrh3cLHrdlmgoAxwGf5YI2TP21zJmveFQQwY5kr8IZWQc5Dj9… (844 chars)"
  }
}