{
  "manageEntity": {
    "action": "Save",
    "entityId": "86528",
    "entityType": "Track",
    "nonce": "0x062537d84e78b2aeaca6aaf5842099ea3672b2b17d3511330842aa53e0762a48",
    "signature": "0x96c1cf27ed4882ac548fb7c6aa0d0ab3555e0df6103a31fa3343d266ef764d3d1cb1cd690dd9dbc81b4bf2da2cb023e59ba5defdac140fafdcb9b0c891f9c0da1c",
    "signer": "0x4D11c3319e766BE8ad4bD57B7E1C96300e25bcd3",
    "userId": "261446337"
  }
}