UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RzqWc4y6Q91qdL3FcbYHfpC/nHvWxS6uTjxmAE/Sq7I=' 
WHERE 
  key_id = '50e535c684e91d639fa9dc41547bea52c20521eed6c47a447350f147aa6b1fac' 
  AND (
    token = 'RzqWc4y6Q91qdL3FcbYHfpC/nHvWxS6uTjxmAE/Sq7I=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )