UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'n18/KGgB3Oew1cB70pcDigY/TtEbZKbaS5/YTAF+fFE=' 
WHERE 
  key_id = '6a8f12199a25b9ea76d037e2595e536cec5570ca9f7468c7ab8dcfa24fc6d831' 
  AND (
    token = 'n18/KGgB3Oew1cB70pcDigY/TtEbZKbaS5/YTAF+fFE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )