UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ircK5y99+QInXUZffjpxK7rBlAvT+MT2f6RP3s7uIig=' 
WHERE 
  key_id = '4d35fa2fd479bc1fe032b890c4463eb61884a42c1e1adea528e80e8f4d3ee44a' 
  AND (
    token = 'ircK5y99+QInXUZffjpxK7rBlAvT+MT2f6RP3s7uIig=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )