UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '91vZJkHakhrb1XoPhQGVvcCjPK01xXZwMfitdwq52Tg=' 
WHERE 
  key_id = '20a194c7d6f1dbe890b7875df9bfa402053e3bf689c5c618f3510380aac2c19b' 
  AND (
    token = '91vZJkHakhrb1XoPhQGVvcCjPK01xXZwMfitdwq52Tg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )