{
  "manageEntity": {
    "action": "Save",
    "entityId": "1056002731",
    "entityType": "Track",
    "nonce": "0xf82d6568bebebeb89e426a3d7f45de69774b7c782a5bb8df8f484bad5c86038d",
    "signature": "0x991a7cb3326b6a588849e4adde56859dd0062b74a7239f9eb7a1556e3dabc18e74d862c800958e2cb61f12ef7c98657356a8db163602c760dd376b54ec831bae1b",
    "signer": "0xdB791822A11f5aDc830669bdADa8121a4558D7A3",
    "userId": "347139808"
  }
}