Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGn21c+il2zKkFUpi+fBhrIiHWCR0I7aDP3gRpvOj9L0zXlhUt6jmT/0W6c… (844 chars)"
  }
}