UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Md4BniZbmjGgAdjZ7Uac3xHIF6U/URW6d7e7gNn4B9g=' 
WHERE 
  key_id = '256c4937789149a28febb27a0fa7b5b71147f6f029b7f8b394404da79ddf1500' 
  AND (
    token = 'Md4BniZbmjGgAdjZ7Uac3xHIF6U/URW6d7e7gNn4B9g=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )