And what is the problem exactly? From your description follows the table settings which has 4 fields: id key value parent_id
well, on the server implement logic changes in child settings as you need..
malvina_Bruen15 answered on July 2nd 19 at 14:06
And You need just the database? I storage settings use consul (https://www.consul.io/).
Previously stored settings in the database, it was not as convenient as consul. Plus for the Consul there is no web interface.