Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwAWv2HwLoOvrSYgt2H5UZHlqknTKo4Q2VcHbwHj+i6KnXt8V4B3APhT4Ia/… (844 chars)"
  }
}