{
  "manageEntity": {
    "action": "Save",
    "entityId": "1733048236",
    "entityType": "Track",
    "nonce": "0x78caebb1ad4407daea76bd665142741b9e551951567a03106173e940c615e1d5",
    "signature": "0xdd3adb8a2c02fd881894de79f71595f0cd8430caeb7c6273e37668990fb733b901080aa5451c94c34049fc5ceafb359aafcca920fdf4f94cff7bc39d1bdc4a1f1c",
    "signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
    "userId": "35918963"
  }
}