{
  "manageEntity": {
    "action": "Save",
    "entityId": "1134006",
    "entityType": "Track",
    "nonce": "0xece15f56a27923a369c3c1c34a8807d1518f29fa1a0b656f5482b519e9a304ca",
    "signature": "0xf4e389d54989282111f090d96ab79649bf8f9e34d309b3bcdd14085dd55e06f02cb1685441446ce3a16c1fc6fcf24094014a3e7899cb917774b692b8986f583f1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}