UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'r8c0y2rfsBdx1pNiETTrwl3ovXRTRexdUu1pYgTSrjE=' 
WHERE 
  key_id = '4290f9b2b0c1cc6f2212e10b165b6d0bad9617265d20efeed76b645080acd5d6' 
  AND (
    token = 'r8c0y2rfsBdx1pNiETTrwl3ovXRTRexdUu1pYgTSrjE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )