{
  "manageEntity": {
    "action": "Save",
    "entityId": "1598196930",
    "entityType": "Track",
    "nonce": "0xc4a493f14c48633298bdd7d2d6aa9398f708f1de4bc7d87fa91493bef2d0ebb0",
    "signature": "0xed61b29159323042c7d648f2d280a7cb5bb812f551969dea79605b1eb9ef167a328b3b3bed48b8c30cc6a10f3f674ae355cfd6789d506fcf82d3714acac276a71c",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}