UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Fm3uVSruFRGvd4K9Y71E7remUHfTlArx6OnS19CLrcs=' 
WHERE 
  key_id = '34ddda773b6b557c967ff23b41ffa871439ede09189b54456c6837be547c975b' 
  AND (
    token = 'Fm3uVSruFRGvd4K9Y71E7remUHfTlArx6OnS19CLrcs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )