UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'znQdntvqm1AKEGoth8HV6LGmC68PvQLnlqcyXmysWhE=' 
WHERE 
  key_id = 'ca9bd7826075611208dfa6bfabcb1bd1e3779e0e761573bc83cea5544c7397f1' 
  AND (
    token = 'znQdntvqm1AKEGoth8HV6LGmC68PvQLnlqcyXmysWhE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )