UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'u2tv9fBlGgC5XfVi9krHzjrTX8xBv+6mqavH4oEKLG8=' 
WHERE 
  key_id = '848f7e784b4c8bf267f885b40911dedc5e687a62684b55fe3e1a40987c792422' 
  AND (
    token = 'u2tv9fBlGgC5XfVi9krHzjrTX8xBv+6mqavH4oEKLG8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )