Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwB3htyjM5Jt3T2jnZBmsSEoYVU5v90f5s8Kky1ZnZ5Tz2xixMSi8OC6TC4V… (844 chars)"
  }
}