- market_id:        any
  group:            any
  maker:            0.002
  taker:            0.002

- market_id:        any
  group:            vip-0
  maker:            0.0030
  taker:            0.0035

- market_id:        any
  group:            vip-1
  maker:            0.0025
  taker:            0.0030

- market_id:        any
  group:            vip-2
  maker:            0.0020
  taker:            0.0025

- market_id:        any
  group:            vip-3
  maker:            0.0015
  taker:            0.0020

- market_id:        any
  group:            vip-4
  maker:            0.001
  taker:            0.0015