{
  "manageEntity": {
    "action": "Save",
    "entityId": "1701353714",
    "entityType": "Track",
    "nonce": "0xdd2c54316e37f1673ff35f9669691c96f5c2afb773dce919414131c935417548",
    "signature": "0x7a02070ed2a10532e9ad1d1ad07c02b0e76e825d6c14d8c3e6bdc7d644779df96bffa46d78ab80694a2f56395411a04683d30e23e316380764d6518a1e63f7121b",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}