02 拆解header · payload · signature
HEADER
{
"alg": "HS256",
"typ": "JWT"
}PAYLOAD
{
"sub": "1234567890",
"name": "Jane Doe",
"iat": 1700000000,
"exp": 4102444800
}sub主题（用户）1234567890iat签发时间2023-11-14 22:13:20Zexp过期时间2100-01-01 00:00:00Z
SIGNATURE
Jp8VbsLh0lH4mVXPTzFjJW6P3dM3bM8dQGmBcDHcPjk
只读展示;本工具不计算或验证 HMAC/RSA 签名
解析通过exp2323501657sBytes177UTF-8RFC 7519v1.0.0