{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44142994",
    "entityType": "User",
    "nonce": "0x25e603fd10f8a9336d77488df8bbeee2c3ea123eb03bbdb72626ba2414cdeac1",
    "signature": "0xf4d6d5488f3e1c1f113983dbc5d6345de764db80f97a80ba03e2a3492bf991c322ab469a50c174c11f45dfb3fd08ca15010da27d390ebe9deb0563758db2c0761c",
    "signer": "0xe53b7523A8cb357D91c0DDF6C1FC39fe6b6D22a4",
    "userId": "76259"
  }
}