UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '/591mQYNQst6cAT2jwLKcQD01lDHjVLSPl4YvkMBPFc=' 
WHERE 
  key_id = '831dbd3fb70b907c14f2225f58788e8e8c7b8a0ecd678e09ae7c68b2c3085d79' 
  AND (
    token = '/591mQYNQst6cAT2jwLKcQD01lDHjVLSPl4YvkMBPFc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )