{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3",
    "entityType": "User",
    "nonce": "0xedd019b1bb8ca7e28a9091436f5a920f5119b965ce75664e6b202b90075fcf52",
    "signature": "0x87dce1e5d207e11c96ef0ca5cf66aaa21f70211705b79120a04f1b5fc4553d9407b4e959a3eea02917861862a288c2597aeb2be4bc01f8d5b5b2b16425db42f71c",
    "signer": "0x7a252808bd60a26fe5184c95eb104CfADdA8D4C1",
    "userId": "186415718"
  }
}