UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'rCK2m2JAdEE7DthFB2GMXcIiRUN52xhKGIQvVpnuTLg=' 
WHERE 
  key_id = '840575a8e00561f150bf18b7f06eca42407e9bd6529c6be0353319b40e20c019' 
  AND (
    token = 'rCK2m2JAdEE7DthFB2GMXcIiRUN52xhKGIQvVpnuTLg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )