{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "364389",
    "entityType": "User",
    "nonce": "0x0f837c41c291d247bd9edb17ce1e5f4507d50812794c6a0c3750c680e1239b52",
    "signature": "0x7b49af9192bc478d75708fad7a51715b0127d75f54dcb3045750ffdcc47cab7a5b3d46e94dfd3a5c853f2c44fc9a6736c88c02ca7c4d2c3fe09463ef413fceca1c",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}