UPDATE 
  tmall_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'NQL7LyN7hNoOJsnZuNJiDmLgJ3SPg2kxA4zUtQTh/0A=' 
WHERE 
  key_id = '68d8bd11fc5753f336f523ab39711882a1eab85eaaadcc24fc4d0b9a63fc49eb' 
  AND (
    token = 'NQL7LyN7hNoOJsnZuNJiDmLgJ3SPg2kxA4zUtQTh/0A=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )