{
  "manageEntity": {
    "action": "Save",
    "entityId": "1005960614",
    "entityType": "Track",
    "nonce": "0x7892e89c6a2afc9dd9933c7c62e0f79e23f654c65cdd491404bbedeaf099ab5a",
    "signature": "0xe983d0df8a5e026f95d33eebd69bd7388dedaeaf685d2efd266c78019fee9af80dc8174b40576132f3c42518bef3ee4fe9f082776be996509d310b21583a7a3c1b",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}