UPDATE 
  vi_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'DF8T86rpcJgM2varorDtit9ql7jZAYiQB19Vu1ur/vA=' 
WHERE 
  key_id = '4d896c092e5968acd0265eafc5502c0f0ae1834f98498006486e12bf7567a8b9' 
  AND (
    token = 'DF8T86rpcJgM2varorDtit9ql7jZAYiQB19Vu1ur/vA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )