Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwE7aCh2NnGIUkd4qWJrlFCfv0NbvdyweGXVdTDi+wjUkiMRtNkH8aM26cmG… (844 chars)"
  }
}