Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHQ9hj7cHqPzAKBT2PTZquP6fPa/No/LJVdN3dEFsg1NwVcwCf3iOEb9Pf+… (844 chars)"
  }
}