Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAGDQB0uigULXdVKByfr/RN+vwfaJpGqcExz72qIWE/xv1ZI2H6d3ZF//Bke4K0… (1,748 chars)"
  }
}