UPDATE 
  vi_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'gUdDCPBFOi80z2gEpQT/hS5+VASavbX4mIMFgOl+foQ=' 
WHERE 
  key_id = '15c1c167e383177675e578518a8477cf28a77bf901f64b6bcfe3551e5d83f289' 
  AND (
    token = 'gUdDCPBFOi80z2gEpQT/hS5+VASavbX4mIMFgOl+foQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )