UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ddLk2KxI68D0WY3IsgqSHo1r+09lzeLxtbmwggurgYE=' 
WHERE 
  key_id = '6ea8470386cc3a5837a4b888cceac51d72d17aaaec075fad5c3835c9d4a6c1a2' 
  AND (
    token = 'ddLk2KxI68D0WY3IsgqSHo1r+09lzeLxtbmwggurgYE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )