Subscribers provides the option to create a segment based on the subscription date of your subscriber. This would enable you to target your subscribers and show specific pushes based on their identification time.
To create a subscription date-based segment, simply navigate in the Subscribers admin dashboard under "Segments" then hit "+New Segment".
Then select "Subscription Date" from the Segment Rules dropdown and select the date and time.
This would result in more personalized content and notifications being served to a subscriber, thus increasing the CTR.