UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'SlwiM8Da6y9wCjAXQ35jhfYzG1HcZULj6D6qR+meNZE=' 
WHERE 
  key_id = '751284cee6a52091ef3467c89f5789472ad4bbc3a84aee3ddf77971d63ea15ad' 
  AND (
    token = 'SlwiM8Da6y9wCjAXQ35jhfYzG1HcZULj6D6qR+meNZE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )