Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAGDQG9Q6kW5EFG/1ocGWDlNFKIFGCNtJplQB0qArUBecu7mFCVqs3jVFW3HyV+… (1,748 chars)"
  }
}