{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x292de607205767082016b239cdcd89def8c57ea24d121ee67bb49a5da3f2afc2",
    "signature": "0xf0cab9d509f9370ddb5c8133185a9d82675f17335d172d144c4080e10c0a8e462234629e59d694920ebe803f397885b3b2b19a617b74553bd2fbcc5c7c3d8bf81b",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}