Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFBC9Bve2F7w6jfCHuZ8d9wZo5KdhhKbwEi/6Smpb7PRSB5XZ+RoqG/E9Nd… (844 chars)"
  }
}