{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xea1c66bcb3f2cc1971c7a35f46178cfe0a38a5b308b210b8821aecb765e5affa",
    "signature": "0x7edf2758e6e1dbda3e66dcb4a1f70e204091ea66129c060e8bb8c4821cdbc16a3e9771a77bc617be18b97047de9d57af8258e8b50f9f9e71e92db01d8f9bdaeb1c",
    "signer": "0xD3e2a2Aeb739263055A5ec4484257b4927578D03",
    "userId": "117667088"
  }
}