diff --git a/src/sync-state.proto b/src/sync-state.proto
new file mode 100644
index 0000000..9ef5e33
--- /dev/null
+++ b/src/sync-state.proto
@@ -0,0 +1,24 @@
+// message Name
+// {
+//   repeated bytes comp = 1;
+// }
+
+message SyncState
+{
+  // required Name name = 1;
+  required string name = 1;
+
+  enum ActionType
+  {
+    UPDATE = 0;
+    DELETE = 1;
+  }
+  required ActionType type = 2;
+
+  optional uint64 seq = 3;
+}
+
+message SyncStateMsg
+{
+  repeated SyncState state = 1;
+}