{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2018345",
    "entityType": "User",
    "nonce": "0x40c6e55bfe287e3ee0a6b94d7b8e6eaed1e0ad3d10d54e0294a05ad3d6ccf224",
    "signature": "0xb7ab07182de6bb943d7cefcb794c0f1e5f0efb2d37bf5959f92fe31de1637cfa4f772a31eb478e0795fcac2180fe2e5dff9b36a01ed194547640be6ca0278a8c1b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}