Drag and drop the table which has the Object data type field in Bold BI as shown in the below image.
NOTE: The object datatype will be hidden on data preview but can be accessed by creating expressions in Bold BI.
Save the data source and continue to create dashboard in Bold BI.
Drag and drop the grid widget and click on the assign data section to start creating expressions.
Press on the expressions button and add the JSON path value as shown in the below image.
To remove double quotes from the parsed JSON values, you need to cast a data type along with the JSON path as shown in the following image.
Assign values to the widget as shown in the below image.
The final rendered widget on dashboard is as shown in the below image.