Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQCpLiJCyMF5qZPI8ATiacqn3GNu0H0VcZ4o1v8LMyDLuASgjAIqP8F1H54J… (1,748 chars)"
  }
}