Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQCU0lX5I6chC9c0WzwXi8S5TA+3nu3tt5MLRwSFFT+wnw7UoHx9ULZm0cL/… (1,748 chars)"
  }
}