UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '81iDt3giTR7Oqws6KuiRlDE53NtQzlRHPgL8KwKlt1k=' 
WHERE 
  key_id = 'a6bf69c768a301b4bbe46de1a1001f0ae29cb1dcfff98bf32a995a93b5cd6901' 
  AND (
    token = '81iDt3giTR7Oqws6KuiRlDE53NtQzlRHPgL8KwKlt1k=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )