{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "707342168",
    "entityType": "User",
    "nonce": "0xd52305f49a72a5254d299d7c3d3e32b4e54d34a9a29629022baf79e7b69f0a88",
    "signature": "0x20f00cd8fac7e51071ec00f3f1528c3c852da8d8b4a3211c9ad0411306f2b36a6e0e30acb4700fc55591f20cdd4b9477da45932b8f11ab513f499ad8654363031b",
    "signer": "0x153849d0859b535B25281bFD3f8611E56A9Ae9af",
    "userId": "604715089"
  }
}