Driver Subscription Deployment Plan
===
- Rides-Core
- Add the following config under rides-core/config

    subscription:
      base: https://driver-subscription.p-stageenv.xyz
      timeout: 700
      appkey: L2Y0MjhiNjZmMDA1MGE1OGYzMDlhMjhmZWVhNjU0NDL
      maxretry: 3

- Merge 'refactor/driver-subscription-model' into master