Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwF6XHaE9ZNuLOkA1KEA23WXoNkDM7NMwp9Dux3CU4DF+SXT1V+RRpW4nZJP… (844 chars)"
  }
}