{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3636",
    "entityType": "User",
    "nonce": "0x65c2b89e1cce500e3e161b8d1ac1e427b60fd532a7e0341980570049de53863b",
    "signature": "0x601bdb7d827b952f9ee7747d328d53a660c8a340c72809f5288a9bf49656ba3f409b089a5a1c5d1195d77b5928291f0541dd789138f10a7024e8d60c6d5a31141c",
    "signer": "0x7D273271690538cF855E5b3002A0dD8c154bB060",
    "userId": "1"
  }
}