Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQC8LaiGnnGNcwBqEhPYR1cyMonKwzs3kNOsi+nfk/DWPwH/EsB+SbMzH9Bb… (1,748 chars)"
  }
}