Forever Session Issue

I am using DF 2.4, i do not want to allow session token to expire , so according to the Link , i have changes accordingly.

  2. Set DF_JWT_TTL to 720
  3. Clear config

i have done above things, and checked “api/v2/system/environment” and getting “allow_forever_sessions”: true , but still when new user is getting registered, then in the “token_map” table of Bitnami_dreamfactory DB, “exp” is showing timestamp to expire in 1 day.

I do not want to sessions to expire of any user , So please give me the solution, how to allow sessions forever ?