UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'YpC8jikCKidAGylTfD2JqsxeE81AIfyOUo1lD2xVa2Y=' 
WHERE 
  key_id = '6846a527d9a9d86a04ae9f15118791deceace9110dc11d0cfdc6ee754ca1e29a' 
  AND (
    token = 'YpC8jikCKidAGylTfD2JqsxeE81AIfyOUo1lD2xVa2Y=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )