Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQBH3utp7PrAkb7bDzJKIgKxi5A5dDTXu6/etCIzmNpcNiTy7MH02uzGh5Zc… (1,748 chars)"
  }
}