Should be this one as our primary node
https://mempool.space/signet/lightning/node/03bb03bb6e389355834c9fc7dfeb849dab17d9940d955f6dba0c27e84c88ca4ab8

And maybe this one as our secondary (I deduced from explorer, didn't double-check internally)
https://mempool.space/signet/lightning/node/024e679c1a77143029b806f396f935fa6cd0744970f412667adfc75edbbab54d7a