{
  "manageEntity": {
    "action": "Save",
    "entityId": "1424180364",
    "entityType": "Track",
    "nonce": "0x107e979bb8bfc00f3fdcbfb08e7df0bc415a2588453e280584d0dea7593eebb4",
    "signature": "0x8157155a43281ef35a917eb82c50e4e8c137111865d259d9df8b13182249ee9b5ffc7de03de47abbdb8dc4580c736d6238684915553175cabf555068b5941bf41b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}