UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'exTmGZC1WEX6tATM3XjoYInuNVbVjh4qpEFMEL7IKmY=' 
WHERE 
  key_id = '42a1b79cca4e4c44fd8ea89282b760eb439a71ca5bce94474cc5171ab25cc4b5' 
  AND (
    token = 'exTmGZC1WEX6tATM3XjoYInuNVbVjh4qpEFMEL7IKmY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )