aws sns add-permission
Adds a statement to a topic's access control policy, granting access for the specified Amazon Web Services accounts to the specified actions. AWS CLI reference
4 options Its page in the AWS CLI reference
Options
--action-nameThe action you want to allow for the specified principal(s).--aws-account-idThe Amazon Web Services account IDs of the users (principals) who will be given access to the specified actions.--labelA unique identifier for the new policy statement.--topic-arnThe ARN of the topic whose access control policy you wish to modify.