UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'chLJEbGtTLO27A9W9k3jadYAmDytt3DYdl67iMgEr2M=' 
WHERE 
  key_id = 'd0550e1369437e1e0df0c505207b28c1681b7710f499202324cb835ac0ea1adb' 
  AND (
    token = 'chLJEbGtTLO27A9W9k3jadYAmDytt3DYdl67iMgEr2M=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )