{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x433c8e5f7d306f3704653fa707aee44e935eddf81e70c479c5ce718b82a802b5",
    "signature": "0x2246d625cd6654316da1a60472060235a28c42b95bd4d940395258e9caa01c9f7c0f4fea831e69995105400d45f12d980d040d1c113d5df08d6a49e94a4156a71b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}