UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Zb9w5e6yyumGPTSEpSVNrTWr8SQsJgh8Q+UbPElSNjw=' 
WHERE 
  key_id = '6ff9a60bf6e85e0cd984c0a3364d828f0c224274a7928eab71da70af89b39e37' 
  AND (
    token = 'Zb9w5e6yyumGPTSEpSVNrTWr8SQsJgh8Q+UbPElSNjw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )