UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Ut4Ktv3pa93sQ/3DOXVvaJ0rH7xbJDCZaT6ZIKwVvoo=' 
WHERE 
  key_id = '35ffa68c0c1b5514af6356ac57ecd767f86f4604c91491ec34812ed3d43bda3b' 
  AND (
    token = 'Ut4Ktv3pa93sQ/3DOXVvaJ0rH7xbJDCZaT6ZIKwVvoo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )