Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHIWTBiVND2bbWgPcYihZlv9Ymd5L6KiVGGO6WvMZW+OUbUWw7kmrbZS/1u… (844 chars)"
  }
}