UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'zUjZutZXP+JcF4j69CHjBO/L1S3Id5bwZKwd4b5OGpA=' 
WHERE 
  key_id = '16ee70758a3881e8e87f17dfbd946dff970011757290c0549c225adaafecabbb' 
  AND (
    token = 'zUjZutZXP+JcF4j69CHjBO/L1S3Id5bwZKwd4b5OGpA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )