UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'kEHu4+vN3MvlFdHHsxt5R630rGVC5f3tdvFvq4+cWg0=' 
WHERE 
  key_id = '4256b2dbfa919e694b7e567f19a916ca86e88671373ee548e7730fda795ef3ad' 
  AND (
    token = 'kEHu4+vN3MvlFdHHsxt5R630rGVC5f3tdvFvq4+cWg0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )