{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "218470",
    "entityType": "User",
    "nonce": "0xa7767349353093b8634e534c6edd805a85a34212e0b07283564a7f6430306754",
    "signature": "0xb54142fb9b3791a6382db34f4f1cf85a6bf22bc25cdac11ab4087a0e3ec8e2ad29b351a75bbcf853ff80780708bf28bb87bff6ab8c98fd3a080569b8fb6f11211b",
    "signer": "0xfEf199273dc1B7112aA0D32cc0DbF797aC6EAfE5",
    "userId": "198179849"
  }
}