{
  "manageEntity": {
    "action": "Save",
    "entityId": "88040",
    "entityType": "Track",
    "nonce": "0xcc1596e5108cbb7ec613dbd862e9009510ac3774cdda2c0e8bbdea4767025001",
    "signature": "0x4cd644137e947671214346500c0166ec6cbde42876522c221345908a15241cf133227f2075d196b686ec73195058929321c6c9f87eac79f63c19eb945dfffecd1c",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}