{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "543019271",
    "entityType": "User",
    "nonce": "0xd14c684a8b57a4f4658b69d0f4eaef5bd143af399ef06cbad9cd124628fa3ac4",
    "signature": "0xfad6d3fb19742a39b3d4ef92b5abef57a0767514e5e91d3475e2afd2989d319935aae74c4933fe47e9ee6d3afe79b579bf60c5e804b55051381b1442c2295adf1b",
    "signer": "0x65b2681094e762CAD2349e6C1e2FbC8d54b9c046",
    "userId": "11153747"
  }
}