I have found a solution while reading reagent sources. But I still wonder if it is a good practice to do like that. Consider this gist https://gist.github.com/achikin/22e48dfca6a1a14c752b88b06783ec6c The idea is that you can do add-watch over the reagent's reaction and re-frame subscription is a reaction.

@achikin what you've got will work, but it doesn't really fit into re-frame's dataflow model of the world