UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'yYg/eDSJECWc86lt66jVNP2+3xdcPClUC7wlGI0oHTc=' 
WHERE 
  key_id = '21f976cb9bfefa8e194457bfe594f758a345e91a1e16d1358bc4429054e6134f' 
  AND (
    token = 'yYg/eDSJECWc86lt66jVNP2+3xdcPClUC7wlGI0oHTc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )