{
  "manageEntity": {
    "action": "Save",
    "entityId": "1079076353",
    "entityType": "Track",
    "nonce": "0xcc914623768380d9b4d7d72329f03bbd6f0488f72e38c076c966705d7cc6bc4c",
    "signature": "0x1a2a01d8a5399b753d021584f439da3ac791e5d738b88ff8d6a695e360996a637bdcabef0d218847d4a7176cfc27711731e842d99046e65d9f7372e28d6b52c91b",
    "signer": "0x1CE93c43F8574f553E8071e946654066188B61BC",
    "userId": "20"
  }
}