Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGQ8DtbYNE/7wg8YaX9Ptztw2A4TwfvbIQ8+4UBG9QbQ08wTBg9X+Utc3Gd… (844 chars)"
  }
}