doc on Nostr: When was this made?

{ "id": "bc9869df108bd26bcd29d0a522c385bfd23e6112c52079576aa20f954a5c7818", "pubkey": "3129509e23d3a6125e1451a5912dbe01099e151726c4766b44e1ecb8c846f506", "created_at": 1721266859, "kind": 1, "tags": [ [ "e", "4da7d40fcc97d066a0f5c96da73820b44cfa02d78c1a6c0deb01d59625dc0899", "wss://relay.damus.io", "root" ], [ "p", "29904dc1dc3101581a87ccd2b2e35dfa07bf2bbafe2e1feea390916ff1332910" ] ], "content": "When was this made?", "sig": "769ba937c4c30b48952dbce1d7732ed0ce66a7ba2f2c5590aa2a82ca29fa1bee1a9864aca0726ed2b80e60168afea1d956a98df221cb8bc7457790379a9b892b" }