{
  "manageEntity": {
    "action": "Save",
    "entityId": "1824178116",
    "entityType": "Track",
    "nonce": "0x1c0f2bd94c08856d2db8996e98d6d431964fd7a224f2a7df141bcf6c689a6f7f",
    "signature": "0xb71d1729f1af51378677f6f3b0658eae26bfd387b737a0fd6e14be97b4845fbd15390ad9c45223fa757f1c48ea27657188b922ec2f1edee6174e0c7b168e50d91b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}