{
  "manageEntity": {
    "action": "Save",
    "entityId": "41152061",
    "entityType": "Track",
    "nonce": "0x17b12b6fc3ec6f4705a3f1e0c090fd0ca9e514fef9876667e6a9116298168655",
    "signature": "0x06b5b8fdbb1640b5f4515e26262fc0d31d967e2132080f2e334667ab64b27d7e55036cf940977d3693603b0d2d8eabfed6ae12ee95b4ce8d8353283bd79962911b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}