UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'tflqAYu5eKVZE2918m6zrq/RIbE4lvKOPP579llNp+0=' 
WHERE 
  key_id = '91ea4ce5468a9a9c5121567ee61a935090357a7d432a88634c3df9f41cfb9a9d' 
  AND (
    token = 'tflqAYu5eKVZE2918m6zrq/RIbE4lvKOPP579llNp+0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )