UPDATE 
  tmall_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RnQjS3f8RM5wQwyylO3B/1/Ce0UQxbLxx8mIFfFZosM=' 
WHERE 
  key_id = 'db4ac4406861b61eac2ea389ed75c68b75fa5038e3190a3f9a0aabd2d709c8a3' 
  AND (
    token = 'RnQjS3f8RM5wQwyylO3B/1/Ce0UQxbLxx8mIFfFZosM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )