UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '5zLmhGeFyOV3kgZs3+4yVAMIq2N9ZvwT4dWFx14yilw=' 
WHERE 
  key_id = '5256f0a3e78467585ba31edbc671abb73f76fb3d40e0caa1fed584a13f60747b' 
  AND (
    token = '5zLmhGeFyOV3kgZs3+4yVAMIq2N9ZvwT4dWFx14yilw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )