UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'xVyxFoZ/nzWrKqw3YVDOlXauP/xlSBZcs0IxVk5KGlE=' 
WHERE 
  key_id = '900a69f8679b680d517f7be5517fae01a8017e7c27775224f74b4ea2df79d08b' 
  AND (
    token = 'xVyxFoZ/nzWrKqw3YVDOlXauP/xlSBZcs0IxVk5KGlE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )