Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGtAx7w2pPDzlU4cSAg1HdTbeMT7MScfQsP5XKFQo2kEEL5BwJsC/zhQcZo… (844 chars)"
  }
}