UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '4SSaljrqkOKUulzRZmjtdUig3frv7wgyk4PSMTgAytE=' 
WHERE 
  key_id = 'e99f473829c908236ca76377ec465dbcc4b7a5dc0c514815f0be560d6070acf4' 
  AND (
    token = '4SSaljrqkOKUulzRZmjtdUig3frv7wgyk4PSMTgAytE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )