Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwAe/PgYa7nGNGC12dXrYw7H5hrFCpRSBFvZKHRaoXn59mVHSscJOHs9/ZVs… (844 chars)"
  }
}