UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'NslaGQIKJgXmPESvIXbjoNb+Vl57wRb4816beFv0aMo=' 
WHERE 
  key_id = 'd4eddb984b70d25fc291979f53c72f2e2c2909548a67cf5400a818f95261e3e4' 
  AND (
    token = 'NslaGQIKJgXmPESvIXbjoNb+Vl57wRb4816beFv0aMo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )