{
  "manageEntity": {
    "action": "Save",
    "entityId": "1110906",
    "entityType": "Track",
    "nonce": "0x78c734065fa4b83860713560bb858d117c62324cd5aff92c08ac4c6c130bc38b",
    "signature": "0x7892c16e625ce5f0d6a8663f7705e5a7e5d50484bbeafff5c063de387013e3e5144abaf06f7b4a721e91cbb166fde579ee9974431f3883bcb933de7d3095e0f51b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}