UPDATE 
  vi_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RANx+i8eQtu6vjaIrq7qEimHbgVO7+9lvblw2xuGbwI=' 
WHERE 
  key_id = '4a75ac08fb6b4e0e88624dd1ff2f9194fa35aa6cfa76457375f717d8bc34dbd8' 
  AND (
    token = 'RANx+i8eQtu6vjaIrq7qEimHbgVO7+9lvblw2xuGbwI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )