UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = '/x0TpHNho/vq+MA4feQ2uCj3ihBEh0O1uC+yvEc5634=' 
WHERE 
  key_id = '9b8ca63fcebe0a8cf33c072e22cc5b53e73dcfcfdd0d0af606dc453ce8d1f9bd' 
  AND (
    token = '/x0TpHNho/vq+MA4feQ2uCj3ihBEh0O1uC+yvEc5634=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )