UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Zb9wLMhX/jMoSz70anTIigjjw2D4AeaUwweUOj6R+CA=' 
WHERE 
  key_id = '477c55578ed385fb545683c243231626d02c52b108169bdab16580eee544e1b5' 
  AND (
    token = 'Zb9wLMhX/jMoSz70anTIigjjw2D4AeaUwweUOj6R+CA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )