Secp256k1 on Nostr: Wtf is this

{ "id": "a4e4e622827c283b847ba627cdb2b81d16078bfbda4b861ee6e58a8ace591484", "pubkey": "c9d40f349a98b0bc2d1602db503532e2d98724073b914dc8771c463983b4dcb7", "created_at": 1676615842, "kind": 1, "tags": [], "content": "Wtf is this \n\nhttps://i.imgur.com/ELFE7UC.jpg", "sig": "fb33b24daf27e9909788914def1e79717b29846a1cf7a6c46846095688451c7458a7e120b7915026e2105071a18f6637c3c84ca597ef5ea96fb519e07055ead9" }