{
  "manageEntity": {
    "action": "Save",
    "entityId": "2095607609",
    "entityType": "Track",
    "nonce": "0x1321e9f4a88b98c23eb0986b57662050a6a8d8f5a52263f422e8478899460c7c",
    "signature": "0x752750cf19e35f98209d58bb3d9254038dea6be1c5cbf5d7d47ed14016ba6ec5583cc2533a50581842273d6f466fc225439cdeff90cbdffee2cd2a9a21c07ddd1c",
    "signer": "0x1CE93c43F8574f553E8071e946654066188B61BC",
    "userId": "52309"
  }
}