{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "638733607",
    "entityType": "User",
    "nonce": "0xb705b76f426c3817644e678f0759aeebc39da3bc8db34734c09b9258c2c8f59e",
    "signature": "0xaf7cdaac046bb56e5cba7bbb52bff73013948a576c922a1d93b5988c550b8ddf7641e14084abc7e6f163b311c24e7162ded2ffe35f0181f7cdd6237795b588a01b",
    "signer": "0x1A523ec8B21411C3F7d611FD345362ad54805b2d",
    "userId": "230518"
  }
}