UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'mPWLFNkxF81vLBUtxkHzMb3kFKCBV4S7SgmI83w1qUY=' 
WHERE 
  key_id = '18b7102527260a79cc76630987da1e2ad721b4ecb8e84512f5d43e66a45fb42c' 
  AND (
    token = 'mPWLFNkxF81vLBUtxkHzMb3kFKCBV4S7SgmI83w1qUY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )