Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwA5nv8UGy8eQH4MbxtcR6b2aC/nn/xgNRzMZ4gtOQ5Pmk/K+v2zg55UEhGf… (844 chars)"
  }
}