{
  "manageEntity": {
    "action": "Save",
    "entityId": "1995610898",
    "entityType": "Track",
    "nonce": "0xb548e78f8370528a44870d93555b771afe6098250c03730c708ecd323afb098f",
    "signature": "0xe9ed19f6dcfea904d53acf79d5c7ee4618c1e05d2d047d29c3052ccda0a6ac674852e3b91a0b938029ca9023c4510a7f252509ce88a1ade18ba5da3517ebc6221b",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}