{
  "manageEntity": {
    "action": "Save",
    "entityId": "162732327",
    "entityType": "Track",
    "nonce": "0x92608fe20673f1ff790f0dc0c1036ed22e3132fa8b2f2840de4cd8aeeca65edb",
    "signature": "0xee50c3bbfea9af9d691a538e67942d3ffe02472d540c531df96622841e25143a2646f93ac5455549739484a6e3465444e68fae0b3fc23712bfdb4b79958e1eef1b",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}