UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'G0Xy4iZGfOJTYhuGyl3NZSFOQ6UyMZrVnOH6fYsBqVw=' 
WHERE 
  key_id = '40ae494233ddaef61ea32965c176bcad200d3f39346d5c1f849a9f8a09491465' 
  AND (
    token = 'G0Xy4iZGfOJTYhuGyl3NZSFOQ6UyMZrVnOH6fYsBqVw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )