Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQC6bwPApbd8zhRuQdY5Ezx9oYTbo/JhFQZz7ogCAnOvVAM76uYA18aEE8KZ… (1,748 chars)"
  }
}