UPDATE 
  tmall_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'U4o5wEx1hH+ikqBN4uGgQXr2ov7/BwHEHC5D1NyDBWI=' 
WHERE 
  key_id = '8dfd70564aeb746c923c78d93fa1860475468018d9c0ea17a1928698e58a7d96' 
  AND (
    token = 'U4o5wEx1hH+ikqBN4uGgQXr2ov7/BwHEHC5D1NyDBWI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )