Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwFhEpf6oCeU2uycXtk/gUTqv4BObld3B/iYXxqL9LFBt0+xb1p+xI2+9Z+2… (844 chars)"
  }
}