Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwCIZNlO7bD1jUUyIf+uiJzBncv/Bg2xytSoE70f8Fr/OSBc+DEA9Qy9ZKuC… (844 chars)"
  }
}