{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x9c9440c918b83cae4e5f6e9fd771b2679a8f44ff8e3fa365ed1ed8264e26e00a",
    "signature": "0xce6b07dbd7958dc7ee9cf1f426b73a436f13ebd5c4638e0bf94d8ccea8c7ad782dfa416ebccc01f83ab29c022060dc7a2c9a3b7c25fb8e4c6aa6851bdbdbc9ee1b",
    "signer": "0x63d394E88B78FF653F4FCeB0AC74Cf5b064dfC34",
    "userId": "633246973"
  }
}