UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MRwfDgZu/k6eNy8vjyfqpTyoGedplBnY5PrjtPmFLR4=' 
WHERE 
  key_id = '19036ac1bdcd8ec9b44b269deac02e03b3e77d39ee691de5c2b866b83d43b466' 
  AND (
    token = 'MRwfDgZu/k6eNy8vjyfqpTyoGedplBnY5PrjtPmFLR4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )