{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1646095",
    "entityType": "User",
    "nonce": "0x1998233c9ec38bf4e099063a31395a5b942ca185fcca267846413b377b535eb3",
    "signature": "0x6c3de7146c5c6c0529eb07cef69e2b6829065d38920fe9f0e02608565e7da2211eaaf1df47f4368d13954700204dc7a23f34221e265907aff9e82ac15f7886b91c",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}