Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwES81oJ4b3QbJ3lTt9Thjwg/h9ynzWGqdd5o8VFYhTQpE4P/ekm7AyEC5y1… (844 chars)"
  }
}