Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwBstxSQjSa7TRQn0zKKd6swgawVXLKp9oKyfvb07QSMvGz5Qpl2sS1k8fk/… (844 chars)"
  }
}