Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwJrBky/OlgMcgCyAjA8gv/XCxJN1/Wh+MshLlfFjfDstgphQIdmP9hEXIoC… (844 chars)"
  }
}