UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'x4S4xkNqEBX660fFeRexQyFFy1oGLmAfmeKHoWGgyZU=' 
WHERE 
  key_id = '768410f4863da048ca73469b5db3ac5e607e7b471b9c1c50c632565f0f74916d' 
  AND (
    token = 'x4S4xkNqEBX660fFeRexQyFFy1oGLmAfmeKHoWGgyZU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )