{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "327803",
    "entityType": "User",
    "nonce": "0x70f27d47befcea18a2f2baac3a93a6354f314d35a7ae41c2456e8eb5102fb226",
    "signature": "0x794c1e22961233f513b19b4e089715459dec5a41c894ceaa3fdb80c6795e809559a3eaab13f2b8e453f5a9600997b57ddab7d648ffc86533c451860e5e3465b31b",
    "signer": "0x3e16afFf69eC32202c1B755Ad919C7aA325B7aBE",
    "userId": "902811065"
  }
}