NESTED_JSON
Map fieldName to JSON. Deep nested key format is supported. Completely overwrite extra data. Arrays are not supported. VGSCollect supports this format by default.
When you need to send data in a specific JSON structure you may do it by adding . notation to fieldName-string. Each . in a fieldName represents a new level of nesting. New field name string could be set into app:fieldName or setFieldName method.