Event JSON
{
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"pubkey": "40cf870d93b7e67d9e0e140e150e064f2adc2cd3c4a91168cd95aa9e98bc91aa",
"created_at": 1675431860,
"kind": 1,
"tags": [],
"content": "初めて書き込み😆🎉",
"sig": "538abe9320df66afb5f7a4bd12b9660485f5e916e8be41963ec4c9d44d305c4f3fda6fe016173e75a85c2016168f04c1d0e020c9ba866078e6f4d8b755cd7032"
}