UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'wNrfHDhDox5bTmLQ7aT7S3RKqm1bQkqXc0EHXNAJtqQ=' 
WHERE 
  key_id = 'fc6c3c706b2b8b68c83b99ace99f1d01f752a4d0d2e9cb1c891a3ec61fc4522c' 
  AND (
    token = 'wNrfHDhDox5bTmLQ7aT7S3RKqm1bQkqXc0EHXNAJtqQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )