diff --git a/src/Utility/DataFormatter.php b/src/Utility/DataFormatter.php
index 1b508312..65f41760 100644
--- a/src/Utility/DataFormatter.php
+++ b/src/Utility/DataFormatter.php
@@ -917,6 +917,9 @@ public static function formatValue($value, $type)
                 $cfgFormat = static::getDateTimeFormat($type);
 
                 return static::formatDateTime($cfgFormat, $value);
+
+            case 'json':
+                return json_decode($value, true);
         }
 
         return $value;