{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1686483",
    "entityType": "User",
    "nonce": "0xf445e89d0509a0193322397ebc994001788a15c3751563e28b556219e372bbf4",
    "signature": "0xeeff1b4577bb85632d46bbd825198dc13301de20279672bd229a49ef699a857733d6d7e6bfc1733accca6a60eab35a959f62c8f6ff7908ef1ac248b103b1cf191b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}