Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHzBMmyd0AfkTYxmIY/gGbYH9UTlj3G5IKTW14LwZVwH1/q3nW4iTKtx2NB… (844 chars)"
  }
}