Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwBqOa7bWAcmEioR8LXasQDTxMxaheB0wLBPW/zEA4Pnt13eU1Z+B1KjyKom… (844 chars)"
  }
}