Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGo7xIBxQGUeS6jh/vJS7qZe43QcTpA1IPu00N5yw5oEkQMycFfBXpCi2ZB… (844 chars)"
  }
}