{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa6bd92683272b06d69195a19902428031992cecc73b59b0d56cba94852ac49a8",
    "signature": "0x93f6bda0e8ae5b8d3da7ed6234249dc0a43805b5f435fd1d4676472e515607be7d82d380bb7c774f391bf225c61cd50721caa6f478e2b97915cc76c72606eb2e1b",
    "signer": "0x5c49999947248598b51CddD1B8cAE17c4A6FD94e",
    "userId": "536024564"
  }
}