Event JSON
{
"id": "4a0907e7f1edfa0e3b3adc6ba5da119a3b145262d64d652127a4433aed38ffbd",
"pubkey": "d92ba9b5f1ad8833c232da69bb6d6949c1b40d6a60751ae8b42b550454e70cae",
"created_at": 1675238535,
"kind": 1,
"tags": [],
"content": "hello，world～",
"sig": "108f44d9d392cd8e5473ef8f134fda3f03183247ee685502ffe5acd80e4f5fd74609665b026ebe2579902b6b6baf90407b25c81bb21cc9d2f8546490ce4fdb66"
}