UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'zd8yZDPvpiB5xmYjeK6b/1dni4Yaoz76A4pzlMhEBwA=' 
WHERE 
  key_id = 'cb50bb231b166af2fcbb4b614ea1c8195c7c6c4b95b6407cbb963d6212afad9c' 
  AND (
    token = 'zd8yZDPvpiB5xmYjeK6b/1dni4Yaoz76A4pzlMhEBwA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )