{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8fed01e87f2f0a82646ca9c0fee85b58e3e5d8db2269798d4cb5cccc2584b0b4",
    "signature": "0xc85ae54deefe007c06e18ed9de4258c81976082132206153bd634d73ef5330dd511f9b35f653045c3382171ed47631bb36b9916898f35f954eeb792a2495f1b61c",
    "signer": "0xfD9e5F437Aae0842341635A25c87Ac319761C318",
    "userId": "418660050"
  }
}