UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'xayk+XJxE6HsLDjwtep1GuPENuvn23zaoYRX0/rY278=' 
WHERE 
  key_id = 'e7dd67adf25f5736bd909949337ba350c974af6a591c0a8a2a7e0aad1a9f3e20' 
  AND (
    token = 'xayk+XJxE6HsLDjwtep1GuPENuvn23zaoYRX0/rY278=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )