blob_for_each_attr(sig, obj->signature, rem) {
t = blobmsg_open_table(data->buf, blobmsg_name(sig));
rem2 = blobmsg_data_len(sig);
blob_for_each_attr(sig, obj->signature, rem) {
t = blobmsg_open_table(data->buf, blobmsg_name(sig));
rem2 = blobmsg_data_len(sig);