Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwFH/vR3lLWt8MJd6DSIloU/PG5vw+ayqWpzC2BiSU2nuWKb8kO5hYDiR7Xd… (844 chars)"
  }
}