{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9ce220c35d05b59a9250fd9ec6e5e647b311ffb6e493cdc431c1d6bdd96b61ce",
    "signature": "0x9eaca4316c63fb01a0e42e80343424cb25411d25b2f9d150ce52c3380cb4115e1e5575da744dcaae5e316dca6a3456e2602dc3d90a253341ae997de3cb091bcc1c",
    "signer": "0x82b746AFd1E9c61a580FC20Bd4936Ef304EC9E33",
    "userId": "259655453"
  }
}