Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQHLt3uOigkGvgKE7MVZmtHR99uJ0QF8/llW6C7oa1zFukCdx3LcFvKG5nx/… (1,748 chars)"
  }
}