Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwD6qJYFAPHRiuGt+PBw0mADBpEWNrOPFA6lkdqeW4qMcEcOyjgYMsn1qHk/… (844 chars)"
  }
}