To remove a user or group's permission to access a level in the topic hierarchy that has an additional level of permission set up, use these commands to remove the user or group from the Sender or Receiver role for the appropriate topic.
To run these commands, use the AdminTask object of the wsadmin scripting client. Each command acts on multiple objects in one operation. The commands are provided to allow you to make the most commonly-required types of update in a consistent manner, where modifying the underlying objects directly would be error-prone.
wsadmin> $AdminTask help SIBAdminCommands
wsadmin> $AdminTask help command_name
$AdminTask removeUserFromTopicRole
{-bus busName
-topicSpace topicSpaceName
-topic topicName
-role roleName
-user userName}
$AdminTask removeGroupFromTopicRole
{-bus busName
-topicSpace topicSpaceName
-topic topicName
-role roleName
-group groupName}
$AdminConfig save