UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'u9B/HededTh+eoDOgFO9o2yzMWXe7TTHrNI8NANq0ZA=' 
WHERE 
  key_id = '6a75e34b541ab95698512bfecbf73967e3715acd5af83fa8cef2167eac1b6803' 
  AND (
    token = 'u9B/HededTh+eoDOgFO9o2yzMWXe7TTHrNI8NANq0ZA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )