UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'BuWkPBgd08o6vzhHgEKAD924Gs55VQ2StbJWZwlIC1o=' 
WHERE 
  key_id = 'cb2d6bc2f64da1c48024e2b42ee25299df58a8080b381bde44bf69894d32f1c4' 
  AND (
    token = 'BuWkPBgd08o6vzhHgEKAD924Gs55VQ2StbJWZwlIC1o=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )