diff --git a/apps/api/src/config/constants.ts b/apps/api/src/config/constants.ts
new file mode 100644
index 0000000..714d63f
--- /dev/null
+++ b/apps/api/src/config/constants.ts
@@ -0,0 +1 @@
+export const DEFAULT_CACHE_TTL = 15 * 60;
diff --git a/apps/api/src/config/schema/env.ts b/apps/api/src/config/schema/env.ts
index c8a80de..3def57c 100644
--- a/apps/api/src/config/schema/env.ts
+++ b/apps/api/src/config/schema/env.ts
@@ -1,10 +1,11 @@
+import { DEFAULT_CACHE_TTL } from '../constants';
 import { z } from 'zod';
 
 const envSchema = z.object({
   CACHE_TTL: z
     .string()
     .transform((val) => Number.parseInt(val, 10))
-    .default('900'),
+    .default(DEFAULT_CACHE_TTL.toString()),
   PORT: z
     .string()
     .transform((val) => Number.parseInt(val, 10))
diff --git a/apps/api/src/proxy/lib/config.ts b/apps/api/src/proxy/lib/config.ts
new file mode 100644
index 0000000..8289031
--- /dev/null
+++ b/apps/api/src/proxy/lib/config.ts
@@ -0,0 +1,3 @@
+export const queryTTL: Record<string, number> = {
+  GetSystemUser: 6 * 60 * 60,
+};
diff --git a/apps/api/src/proxy/proxy.controller.ts b/apps/api/src/proxy/proxy.controller.ts
index fa8232b..e58dd21 100644
--- a/apps/api/src/proxy/proxy.controller.ts
+++ b/apps/api/src/proxy/proxy.controller.ts
@@ -1,13 +1,20 @@
+import { queryTTL } from './lib/config';
 import type { GQLRequest } from './types';
 import { CACHE_MANAGER } from '@nestjs/cache-manager';
 import { All, Controller, Inject, Req, Res } from '@nestjs/common';
-import { Cache } from 'cache-manager';
+import type { Cache } from 'cache-manager';
 import { FastifyReply, FastifyRequest } from 'fastify';
 import { env } from 'src/config/env';
 
+type RedisStore = Omit<Cache, 'set'> & {
+  set: (key: string, value: unknown, { ttl }: { ttl: number }) => Promise<void>;
+};
+
 @Controller('proxy')
 export class ProxyController {
-  constructor(@Inject(CACHE_MANAGER) private readonly cacheManager: Cache) {}
+  constructor(
+    @Inject(CACHE_MANAGER) private readonly cacheManager: RedisStore,
+  ) {}
   @All('/graphql')
   public async graphql(@Req() req: FastifyRequest, @Res() reply: FastifyReply) {
     const { operationName, query, variables } = req.body as GQLRequest;
@@ -15,22 +22,19 @@ export class ProxyController {
     const key = `${operationName} ${JSON.stringify(variables)}`;
     const cached = await this.cacheManager.get(key);
 
-    if (cached) {
-      return reply.send(cached);
-    }
+    if (cached) return reply.send(cached);
 
     const response = await fetch(env.URL_CRM_GRAPHQL_DIRECT, {
       body: JSON.stringify({ operationName, query, variables }),
-      headers: {
-        Authorization: req.headers.authorization,
-        'Content-Type': 'application/json',
-        Cookie: req.headers.cookie,
-      },
+      headers: req.headers as HeadersInit,
       method: req.method,
     });
 
     const data = await response.json();
-    if (data) await this.cacheManager.set(key, data);
+    if (data) {
+      const ttl = queryTTL[operationName] || env.CACHE_TTL;
+      await this.cacheManager.set(key, data, { ttl });
+    }
 
     return reply.send(data);
   }