UPDATE 
  tmall_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'UEwk3zBfP5sVC8rw4T6LVg/Fzbdg1y876wdaMNqxu4E=' 
WHERE 
  key_id = '871f8bbfd1b25426f2ff968fd4825f3263c1e514dfd0b7aea7201b2d5e52fd6d' 
  AND (
    token = 'UEwk3zBfP5sVC8rw4T6LVg/Fzbdg1y876wdaMNqxu4E=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )