UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'AhTZSvNg+5IR3ise9W4ZAMEK89gvCHSZOsxxDH/1Gak=' 
WHERE 
  key_id = '4c753eddc200fee2c10edbbc2f5d6faaccc96d8719b2fcfda0777e4b3852e511' 
  AND (
    token = 'AhTZSvNg+5IR3ise9W4ZAMEK89gvCHSZOsxxDH/1Gak=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )