UPDATE 
  vi_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '9MrWVZu5dunfbeqPzBWKDEKE7IOslomfHaAwhonyBIM=' 
WHERE 
  key_id = '2a4ca03c2918ba7835b3c7828045208c539de831f7e1de19197bead16e3bf850' 
  AND (
    token = '9MrWVZu5dunfbeqPzBWKDEKE7IOslomfHaAwhonyBIM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )