UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'tGqo6vG2ktgRrbkBzP37PdMqdXUPlcT7b77ZJn3qv1k=' 
WHERE 
  key_id = '255665203492e8b861b026e6d822bb9f9d171e7e2dfd5b6b2f02742a9e736dec' 
  AND (
    token = 'tGqo6vG2ktgRrbkBzP37PdMqdXUPlcT7b77ZJn3qv1k=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )