UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'c6q3jSpsnO0H7klFHQNKSnepv5QXpWe5WiKwDkUtSh0=' 
WHERE 
  key_id = '55c9015a274e9dfea4953070d29a46e9195ccf080d47d6be9a1729bff1e51520' 
  AND (
    token = 'c6q3jSpsnO0H7klFHQNKSnepv5QXpWe5WiKwDkUtSh0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )