There is provided mechanisms for handling network subscriptions of a subscriber entity having a network subscription locked to a source subscription management entity. A method is performed by a profile handling entity. The method comprises obtaining a request message for download of a new network subscription handled by a target subscription management entity, the request message comprising identity information of the target subscription management entity. The method comprises transmitting, when there is a mismatch between the identity information and reference identity information, a release request message of the network subscription to the source subscription management entity via the target subscription management entity. The method comprises receiving, from the source subscription management entity via the target subscription management entity, a release response message of the network subscription. The method comprises allowing the target subscription management entity to download the new network subscription to the subscriber entity upon successful verification of the release response message.