{
  "manageEntity": {
    "action": "Save",
    "entityId": "1004330599",
    "entityType": "Track",
    "nonce": "0x216a1bbe6cc3d09b696443e1aa4e3e31b706acbc7df74cc1362343cd57dbb7cb",
    "signature": "0x30f29d88c723710590da9ec693462a52351b98bcc7e3b4d89e1186dcc6bfbbf160d45a492c3b2b6cc7b9e98a34ebf5563248f21c9878009932dcafb0e589b9d71c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}