{
  "manageEntity": {
    "action": "Save",
    "entityId": "1176646525",
    "entityType": "Track",
    "nonce": "0x1d1eb6ab6cbe7142df94ec3ac8df5b4f6fd885f79bb5a297a9fa21e3bd1b154c",
    "signature": "0xdcf54f4df8dce372e9baea116f1f87316bf10c179729dbc937ad112485611d064bd0550cdac8a8b12036cbf252efa828c4810d418a4cfea1284f2646db59c6521b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}