Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwD/CYqHOtXmlTktMvqPOAag8lDG8/ZMKyMNZ5C5qNe8F2oxfQyeWpV2qaU6… (844 chars)"
  }
}