{
  "manageEntity": {
    "action": "Save",
    "entityId": "974181372",
    "entityType": "Track",
    "nonce": "0x06dcadd4ee72cbdd380e9696709853ed4f78db7c7734cdef43a733771b312c13",
    "signature": "0xb2d35164f445ea732e4812f5191129f863ce60061e9b59504747e9e7f06b7a73006f60298e28ce3281ccbe3e560a18a9f0978f21a5256fadffb758636d6076971c",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}