Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQAMbq+xkLJZfJDEpxj5KglXYuC2VffF/pQKGd8fTVzB5DkRf4DakRFjJAL/… (1,748 chars)"
  }
}