Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwE8e0xchrv35RJ5WrRmUQxO3yd+g1X8lkesCu+XaTk6Okm9nFY5f4Bqc9y2… (844 chars)"
  }
}