{
  "manageEntity": {
    "action": "Save",
    "entityId": "1110500095",
    "entityType": "Track",
    "nonce": "0x02f1c98ad880265d9393c3be6954ff39c4948613dce1167dda345946df2d0ea9",
    "signature": "0xe15538791588141e51343277333b16d80949b4ebc8ff8ce1b3d0554451abb646789e238c8d8a58ecc66a81eb5937e48c7a67224dfb3dd6959ec8c82ef640709a1c",
    "signer": "0x7ceA71B4A8C4013A4f57c1A57eC0430915572e86",
    "userId": "31724295"
  }
}