Subject contains UTF-8 codes sometimes

app/Traits/UseMongo.php

@@ -30,4 +30,14 @@ trait UseMongo
 	{
 		$this->attributes['msg'] = utf8_encode($value);
 	}
+
+	public function getSubjectAttribute($value): string
+	{
+		return utf8_decode($value);
+	}
+
+	public function setSubjectAttribute($value): void
+	{
+		$this->attributes['subject'] = utf8_encode($value);
+	}
 }