Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQAvLmcOOYq/6bXM3Z2WV+zSVecoNTK1dq4fFYcDvR9H7nMFGblhpL4aNHiJ… (1,748 chars)"
  }
}