Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFX5QPA5NEHuLiVSDO5l9q7XDJVEXjzLESZPSsYnb8qqFYSHoiCoPP+r4LV… (844 chars)"
  }
}