Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQGqktlQT3qoswYZt1hJLTj/5rmRO+zssEVZji1tMu+mFz5uQgsvTdfe3xsA… (1,748 chars)"
  }
}