diff --git a/src/main/java/org/lanit/service/JsonProcessingService.java b/src/main/java/org/lanit/service/JsonProcessingService.java
new file mode 100644
index 0000000..62752f1
--- /dev/null
+++ b/src/main/java/org/lanit/service/JsonProcessingService.java
@@ -0,0 +1,63 @@
+package org.lanit.service;
+
+import org.lanit.models.*;
+import org.springframework.stereotype.Service;
+import java.util.List;
+import java.util.Optional;
+
+@Service
+public class JsonProcessingService {
+
+    public Info processAdd(AddRequest request) {
+        Info info = request.getInfo();
+        Add add = request.getAdd();
+        List<Ticker> tickers = info.getTickers();
+
+        // Ищем тикер
+        Optional<Ticker> existingTicker = tickers.stream()
+                .filter(t -> t.getTicker().equals(add.getName()))
+                .findFirst();
+
+        Ticker targetTicker;
+        if (existingTicker.isPresent()) {
+            targetTicker = existingTicker.get();
+        } else {
+            // Создаем новый тикер
+            targetTicker = new Ticker();
+            targetTicker.setTicker(add.getName());
+            targetTicker.setAlerts(new java.util.ArrayList<>());
+            tickers.add(targetTicker);
+        }
+
+        // Создаем и добавляем оповещение
+        Alert newAlert = new Alert();
+        newAlert.setTimeFrame(add.getTimeFrame());
+        newAlert.setPercent(add.getPercent());
+        targetTicker.getAlerts().add(newAlert);
+
+        return info;
+    }
+
+    public Info processDelete(DeleteRequest request) {
+        Info info = request.getInfo();
+        Delete delete = request.getDelete();
+        List<Ticker> tickers = info.getTickers();
+
+        // Ищем тикер
+        Ticker targetTicker = tickers.stream()
+                .filter(t -> t.getTicker().equals(delete.getTickerName()))
+                .findFirst()
+                .orElseThrow(() -> new RuntimeException("Передан некорректный тикер"));
+
+        // Проверяем индекс
+        List<Alert> alerts = targetTicker.getAlerts();
+        int index = delete.getAlertIndex();
+        if (index < 0 || index >= alerts.size()) {
+            throw new RuntimeException("Передан некорректный индекс");
+        }
+
+        // Удаляем оповещение
+        alerts.remove(index);
+        return info;
+    }
+}
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