Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwAkAomg7fWT20P8dMI6GiB2KBcPwyK6i04L5ZafGkV+NmZS8OW2BQjdm5Vp… (844 chars)"
  }
}