{
  "manageEntity": {
    "action": "Save",
    "entityId": "1332090122",
    "entityType": "Track",
    "nonce": "0xe4cb68ec132ccac6bb338be903df903bbf715486ae6deb5a0a6007db62341851",
    "signature": "0x3a292371b39a83eddba625868f006dc7c133ad6ec02fe35aba107ef180862af377818ddd270e05f60c3fc0e7fd2e19f6590f1c20529ecfde2942167b828b6d531b",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}