{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x4408141872a0ab0607fabcb1cd5078dd9463a307769189d77422650f90b9cdbd",
    "signature": "0x24a14589ba5cb36b081506802772ce73d157b4297c94cc2a88b3dd588303a6264d6279cadc0c3de2c79bbe99b02c872f246d7aa5f2263c346ed5454bbfeaee741b",
    "signer": "0x0fdbE0966d6f65E3DE225D16D06131c10d4F2b3e",
    "userId": "560630042"
  }
}