Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQB4M8mwdZ2waK+jdIGnWijxOqNwG6eDMfdZrhaHtmP66mWOoRSjgzz4O7ZQ… (1,748 chars)"
  }
}