UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '9PdGc7XeY2z6qhxEBEd1eG27u5EwSTwvkVWdBHxjSgc=' 
WHERE 
  key_id = '39927c7fec3751b2595fea18e0e3de9c86376db7b721d1118aee0537d05b3011' 
  AND (
    token = '9PdGc7XeY2z6qhxEBEd1eG27u5EwSTwvkVWdBHxjSgc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )