Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHSRTEQcQxfPf8yFw7fZWtP9GWl/03C+ySGcXDFT7steSkjONSTT3gRTXVu… (844 chars)"
  }
}