Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFdmsKGDrsreo+bEUCht+/yYLeqM11cYCYiQSRNtC5lHSbdFI7OE3Xb4iBT… (844 chars)"
  }
}