diff --git a/src/sakia/data/entities/__init__.py b/src/sakia/data/entities/__init__.py
index 35265ddcc06ccd0f293861bef477d56c8408b113..cc26e0512cac040a8f9ea0d2f2c156218c094504 100644
--- a/src/sakia/data/entities/__init__.py
+++ b/src/sakia/data/entities/__init__.py
@@ -4,3 +4,4 @@ from .certification import Certification
 from .transaction import Transaction
 from .node import Node
 from .connection import Connection
+from .user_parameters import UserParameters
diff --git a/src/sakia/data/entities/user_parameters.py b/src/sakia/data/entities/user_parameters.py
new file mode 100644
index 0000000000000000000000000000000000000000..54b543b8d97c56df7c099227582178224ee4b3b5
--- /dev/null
+++ b/src/sakia/data/entities/user_parameters.py
@@ -0,0 +1,20 @@
+import attr
+
+
+@attr.s()
+class UserParameters:
+    """
+    The user parameters entity
+    """
+    lang = attr.ib(convert=str, default="en_US")
+    referential = attr.ib(convert=int, default=0)
+    expert_mode = attr.ib(convert=bool, default=False)
+    digits_after_comma = attr.ib(convert=int, default=2)
+    maximized = attr.ib(convert=bool, default=False)
+    notifications = attr.ib(convert=bool, default=True)
+    enable_proxy = attr.ib(convert=bool, default=True)
+    proxy_type = attr.ib(convert=int, default=0)
+    proxy_address = attr.ib(convert=str, default="")
+    proxy_port = attr.ib(convert=int, default=8080)
+    international_system_of_units = attr.ib(convert=int, default=False)
+    forgetfulness = attr.ib(convert=bool, default=True)
diff --git a/src/sakia/data/files/__init__.py b/src/sakia/data/files/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..39fa10f9997e3520fca3e929607e0a9ed76a5159
--- /dev/null
+++ b/src/sakia/data/files/__init__.py
@@ -0,0 +1 @@
+from .user_parameters import UserParametersFile
\ No newline at end of file
diff --git a/src/sakia/data/files/user_parameters.py b/src/sakia/data/files/user_parameters.py
new file mode 100644
index 0000000000000000000000000000000000000000..119fee4da3258701cde9abe097048b79928fbc79
--- /dev/null
+++ b/src/sakia/data/files/user_parameters.py
@@ -0,0 +1,28 @@
+import attr
+import json
+from ..entities import UserParameters
+
+
+@attr.s(frozen=True)
+class UserParametersFile:
+    """
+    The repository for UserParameters
+    """
+    _file = attr.ib()
+
+    def save(self, user_parameters):
+        """
+        Commit a user_parameters to the database
+        :param sakia.data.entities.UserParameters user_parameters: the user_parameters to commit
+        """
+        with open(self._file, 'w') as outfile:
+            json.dump(attr.asdict(user_parameters), outfile, indent=4)
+
+    def load(self):
+        """
+        Update an existing user_parameters in the database
+        :param sakia.data.entities.UserParameters user_parameters: the user_parameters to update
+        """
+        with open(self._file, 'r') as json_data:
+            user_parameters = UserParameters(**json.load(json_data))
+        return user_parameters
\ No newline at end of file
diff --git a/src/sakia/data/repositories/meta.sql b/src/sakia/data/repositories/meta.sql
index 693aeea8424a112f5a7cdae3d78aaf122d6eb7b8..4d1cbb1ee1090a4b5a23fa3f33a08a9ae7ef7656 100644
--- a/src/sakia/data/repositories/meta.sql
+++ b/src/sakia/data/repositories/meta.sql
@@ -81,7 +81,7 @@ CREATE TABLE IF NOT EXISTS nodes(
                                pubkey               VARCHAR(50),
                                endpoints            TEXT,
                                peer_buid            VARCHAR(100),
-                               uid               VARCHAR(50),
+                               uid                  VARCHAR(50),
                                current_buid         VARCHAR(100),
                                previous_buid        VARCHAR(100),
                                state                INT,
@@ -93,10 +93,12 @@ CREATE TABLE IF NOT EXISTS nodes(
                                PRIMARY KEY (currency, pubkey)
                                );
 
--- Keys TABLE
+-- Cnnections TABLE
 CREATE TABLE IF NOT EXISTS connections(
                                currency           VARCHAR(30),
                                pubkey             VARCHAR(50),
                                salt               VARCHAR(50),
                                PRIMARY KEY (currency, pubkey)
                                );
+
+
diff --git a/src/sakia/tests/unit/data/test_user_parameters_file.py b/src/sakia/tests/unit/data/test_user_parameters_file.py
new file mode 100644
index 0000000000000000000000000000000000000000..c4fe4980b9229335148fafd1208e86d8c97a8aa8
--- /dev/null
+++ b/src/sakia/tests/unit/data/test_user_parameters_file.py
@@ -0,0 +1,16 @@
+from sakia.data.entities import UserParameters
+from sakia.data.files import UserParametersFile
+import tempfile
+import unittest
+import os
+
+
+class TestUserParametersFile(unittest.TestCase):
+    def test_init_save_load(self):
+        file = os.path.join(tempfile.mkdtemp(), "params.json")
+        user_parameters = UserParameters()
+        user_parameters_file = UserParametersFile(file)
+        user_parameters.proxy_address = "test.fr"
+        user_parameters_file.save(user_parameters)
+        user_parameters_2 = user_parameters_file.load()
+        self.assertEqual(user_parameters, user_parameters_2)