UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ex45nF0Is5ez81+dcze8K9DZ5Ef6sFB7Cb1rE4k+CUM=' 
WHERE 
  key_id = '2fb2e59f490c31901efeca6e485d80facaaeabac8870e010b4a9c477afd11549' 
  AND (
    token = 'ex45nF0Is5ez81+dcze8K9DZ5Ef6sFB7Cb1rE4k+CUM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )