{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa86754ad303431127ba1fab0e78f2f8646954205cd42d82fe70ae339c36510da",
    "signature": "0xeb2bed917b02e3b771ec546300544c6becf7e1337a37d82f3832517d0e02f7535a3d87f7da6bf58c0a4a0824f2227cf27a0c12321ee0fa227bfdcc4f8641704d1c",
    "signer": "0xA49d4265E0A6dbf4Bd1379bc0cF08A6F9d16C4f2",
    "userId": "502236166"
  }
}