Signature Invalid on meeting Join randomly in Zoom Meeting SDK Version "^2.9.5"

Description
I am Creating Signature From my Java Spring Boot Application but one in a 10-20 times it says Signature is Invalid rest of the times it works fine. Don’t Know the Reason.

Browser Console Error
tp-errors.handler.ts:31 Error intercepted Error: Uncaught (in promise): Object: {“type”:“JOIN_MEETING_FAILED”,“reason”:“Signature is invalid.”,“errorCode”:3712}
at resolvePromise (zone.js:1211:1)
at resolvePromise (zone.js:1165:1)
at zone.js:1118:1
at zone.js:1134:1
at asyncGeneratorStep (asyncToGenerator.js:11:1)
at _throw (asyncToGenerator.js:29:1)
at _ZoneDelegate.invoke (zone.js:372:1)
at Object.onInvoke (core.mjs:25608:33)
at _ZoneDelegate.invoke (zone.js:371:1)
at Zone.run (zone.js:134:1)
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Which Web Meeting SDK version?
“^2.9.5”

Meeting SDK Code Snippets
`
long iat = Math.round(new Date().getTime() / (float) 1000) - 30;
long exp = iat + 60 * 60 * 2;

  JSONObject header = new JSONObject();
  header.put("alg", "HS256");
  header.put("typ", "JWT");

  JSONObject payload = new JSONObject();
  payload.put("sdkKey", sdkKey);
  payload.put("mn", id);
  payload.put("role", 0);
  payload.put("iat", iat);
  payload.put("exp", exp);
  payload.put("appKey", sdkKey);
  payload.put("tokenExp", exp);

  final String base64Payload = encode(payload.toString().getBytes(StandardCharsets.UTF_8));
  final String base64header = encode(header.toString().getBytes(StandardCharsets.UTF_8));
  final String signature = hmacSha256(base64header + "." + base64Payload, sdkSecret);

  return base64header + "." + base64Payload + "." + signature;`

Screenshots

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Troubleshooting Routes
The troubleshooting attempt types you’ve already exhausted, including testing with the appropriate sample app (found on Zoom · GitHub).

Device (please complete the following information):

  • Device: [Macbook Pro, windows]
  • OS: [e.g. macOS Ventura, windows 11]
  • Browser: [e.g. Chrome]
  • Browser Version [e.g. 88.0.4324.150 (Official Build) (x86_64)]

are you able to share your jwt token?

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