UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'r9uGAlDPYDXAKZL7XWGlk7OgyAG3tYWmlU2A1/0jxjc=' 
WHERE 
  key_id = '4970cf98345bb998d9100885ba864445541ef2e113261de98576973e5a0368c6' 
  AND (
    token = 'r9uGAlDPYDXAKZL7XWGlk7OgyAG3tYWmlU2A1/0jxjc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )