diff --git a/src/entity_manager/entity_manager.hpp b/src/entity_manager/entity_manager.hpp
new file mode 100644
index 0000000..ccd106e
--- /dev/null
+++ b/src/entity_manager/entity_manager.hpp
@@ -0,0 +1,136 @@
+/*
+// Copyright (c) 2018 Intel Corporation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+*/
+/// \file entity_manager.hpp
+
+#pragma once
+
+#include "../utils.hpp"
+
+#include <systemd/sd-journal.h>
+
+#include <boost/container/flat_map.hpp>
+#include <nlohmann/json.hpp>
+#include <sdbusplus/asio/object_server.hpp>
+
+#include <string>
+
+inline void logDeviceAdded(const nlohmann::json& record)
+{
+    if (!deviceHasLogging(record))
+    {
+        return;
+    }
+    auto findType = record.find("Type");
+    auto findAsset =
+        record.find("xyz.openbmc_project.Inventory.Decorator.Asset");
+
+    std::string model = "Unknown";
+    std::string type = "Unknown";
+    std::string sn = "Unknown";
+    std::string name = "Unknown";
+
+    if (findType != record.end())
+    {
+        type = findType->get<std::string>();
+    }
+    if (findAsset != record.end())
+    {
+        auto findModel = findAsset->find("Model");
+        auto findSn = findAsset->find("SerialNumber");
+        if (findModel != findAsset->end())
+        {
+            model = findModel->get<std::string>();
+        }
+        if (findSn != findAsset->end())
+        {
+            const std::string* getSn = findSn->get_ptr<const std::string*>();
+            if (getSn != nullptr)
+            {
+                sn = *getSn;
+            }
+            else
+            {
+                sn = findSn->dump();
+            }
+        }
+    }
+
+    auto findName = record.find("Name");
+    if (findName != record.end())
+    {
+        name = findName->get<std::string>();
+    }
+
+    sd_journal_send("MESSAGE=Inventory Added: %s", name.c_str(), "PRIORITY=%i",
+                    LOG_INFO, "REDFISH_MESSAGE_ID=%s",
+                    "OpenBMC.0.1.InventoryAdded",
+                    "REDFISH_MESSAGE_ARGS=%s,%s,%s", model.c_str(),
+                    type.c_str(), sn.c_str(), "NAME=%s", name.c_str(), NULL);
+}
+
+inline void logDeviceRemoved(const nlohmann::json& record)
+{
+    if (!deviceHasLogging(record))
+    {
+        return;
+    }
+    auto findType = record.find("Type");
+    auto findAsset =
+        record.find("xyz.openbmc_project.Inventory.Decorator.Asset");
+
+    std::string model = "Unknown";
+    std::string type = "Unknown";
+    std::string sn = "Unknown";
+    std::string name = "Unknown";
+
+    if (findType != record.end())
+    {
+        type = findType->get<std::string>();
+    }
+    if (findAsset != record.end())
+    {
+        auto findModel = findAsset->find("Model");
+        auto findSn = findAsset->find("SerialNumber");
+        if (findModel != findAsset->end())
+        {
+            model = findModel->get<std::string>();
+        }
+        if (findSn != findAsset->end())
+        {
+            const std::string* getSn = findSn->get_ptr<const std::string*>();
+            if (getSn != nullptr)
+            {
+                sn = *getSn;
+            }
+            else
+            {
+                sn = findSn->dump();
+            }
+        }
+    }
+
+    auto findName = record.find("Name");
+    if (findName != record.end())
+    {
+        name = findName->get<std::string>();
+    }
+
+    sd_journal_send("MESSAGE=Inventory Removed: %s", name.c_str(),
+                    "PRIORITY=%i", LOG_INFO, "REDFISH_MESSAGE_ID=%s",
+                    "OpenBMC.0.1.InventoryRemoved",
+                    "REDFISH_MESSAGE_ARGS=%s,%s,%s", model.c_str(),
+                    type.c_str(), sn.c_str(), "NAME=%s", name.c_str(), NULL);
+}