{
  "manageEntity": {
    "action": "Save",
    "entityId": "1112234",
    "entityType": "Track",
    "nonce": "0x36b831d01d4d5e1b6ff55b8d154a846b1b1f84bffa93094cc7cb55c044b4b992",
    "signature": "0x08953105c46b2fdfdf55a8060199604998a1f90e1e32866b5c5ae31e851765487e5e7fff1743c90457db1dea2b372311399312dccd9be07179e3dbd3b144df4c1c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}