Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQBDu8C4b9VxsA8hVTzpwhW/g22J8Zhnq7+ScG5ks5qDcRuhMGKylFrZCeHG… (1,748 chars)"
  }
}