UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '8o2K9kFktBwqqjk9yZ+jo4I0TwYSNttDwfwPk06FyAY=' 
WHERE 
  key_id = '18677f82c12f6a9a8b7f3f7ecaa2931c9297fafdc18705f8c2fca93900577992' 
  AND (
    token = '8o2K9kFktBwqqjk9yZ+jo4I0TwYSNttDwfwPk06FyAY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00050