UPDATE 
  tmall_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '+6QCRX7lN0Nn5cMnW+N7WYMRu14cLk/uQTj7vi3ZGVE=' 
WHERE 
  key_id = '77c3900bd4804434b0cdafe624cc79835bd4a251332c60bf42bb07f393229e62' 
  AND (
    token = '+6QCRX7lN0Nn5cMnW+N7WYMRu14cLk/uQTj7vi3ZGVE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )