UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'jftbJQVPGwCVATf9r0y8xnKt3lqAVJ1yXA9d2hkOahU=' 
WHERE 
  key_id = '799914aae0e343bcf9797e9b51cf56b3904ac6207782dff3c5e1df42cd246476' 
  AND (
    token = 'jftbJQVPGwCVATf9r0y8xnKt3lqAVJ1yXA9d2hkOahU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )