Pass array as query parameter in Postman

I am trying to pass an array as query parameter in Postman.

I am calling DELETE method to delete a user from list of databases. It is expecting list of database names as array in the query parameter. When I pass as given below, I am getting error.

{"code":2,"message":"data_services must be an array and not empty"}

Please let me know, how can I pass an array as query parameter in Postman.