Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHC+gB3QXro6yE+FVaXY3NnBwOunLZOVuMQ4w2/Z55+ZTGXKxo76m5Irm+2… (844 chars)"
  }
}