UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ErLG/8/yFjEl8gFP9zLvHgKjxyiGCpzdkTihtRsq8XQ=' 
WHERE 
  key_id = '6f15a161c27dba1afc3d44c821a85e9b6cefe49380b326839c694dca196111f0' 
  AND (
    token = 'ErLG/8/yFjEl8gFP9zLvHgKjxyiGCpzdkTihtRsq8XQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )