Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFQCU7gQd6fpfO+OsyMdLIWikVk/D+BdkyWtMZ+QPlUnUW0HUTKl8nY8XhL… (844 chars)"
  }
}