diff --git a/app/api/routes/_blockchain.py b/app/api/routes/_blockchain.py
index 2526dac..54f46af 100644
--- a/app/api/routes/_blockchain.py
+++ b/app/api/routes/_blockchain.py
@@ -6,6 +6,7 @@ from sanic import response
 from tonsdk.boc import begin_cell, begin_dict
 from tonsdk.utils import Address
 
+from base58 import b58encode
 from app.core._blockchain.ton.connect import TonConnect, wallet_obj_by_name
 from app.core._blockchain.ton.platform import platform
 from app.core._config import PROJECT_HOST
@@ -103,7 +104,7 @@ async def s_api_v1_blockchain_send_new_content_message(request):
             request.ctx.user.translated('p_uploadContentTxRequested').format(
                 title=content_title,
             ), message_type='hint', message_meta={
-                'encrypted_content_hash': encrypted_content_cid.content_hash,
+                'encrypted_content_hash': b58encode(encrypted_content_cid.content_hash).decode(),
                 'hint_type': 'uploadContentTxRequested'
             }
         )