UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'xDcNH6J/2b7HaaBFE+IEIRzsyXz0HJR6nEL0FigXDdI=' 
WHERE 
  key_id = '511d98b4807a0d16bb3a94e9711bc29acadd74ee270a46d7c0bc0276e32600df' 
  AND (
    token = 'xDcNH6J/2b7HaaBFE+IEIRzsyXz0HJR6nEL0FigXDdI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )