UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Mud5cdn1HS8C32RV15Lmw/rk6fFysaVpwF1Tz7yHaNc=' 
WHERE 
  key_id = '28f0f65ed0fa6797e7ffdff5f9de2b4bf4e2fbe409fc38146945b83b91f3780b' 
  AND (
    token = 'Mud5cdn1HS8C32RV15Lmw/rk6fFysaVpwF1Tz7yHaNc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )