UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'q54vJxugO+aM8V3g/zac0zpdMeGWhnv3ZbZEX+gyLxo=' 
WHERE 
  key_id = '6751a967b4bd899e20e44eb8ab5a2e938b9d10354a8cfb29aeb2ef0aebb1291d' 
  AND (
    token = 'q54vJxugO+aM8V3g/zac0zpdMeGWhnv3ZbZEX+gyLxo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )