UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'zR36gLzNh/mIxAXkddvj3qPDoXgx1kvt3jkctJTeiAA=' 
WHERE 
  key_id = '958c18d3c3662105e6d3a30d6cd5a14112712c0769f7cdf796e0fbfd2f5db356' 
  AND (
    token = 'zR36gLzNh/mIxAXkddvj3qPDoXgx1kvt3jkctJTeiAA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )