{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "512568",
    "entityType": "User",
    "nonce": "0x1c46310e244029ba028e86d33ee1dacb00617cdbc43b141639b69ac89b62ed8e",
    "signature": "0x0ee2fdb928ff8e61a3600b10b29e20a533c18de866210db773bfd67f259523ed401ecda52cc8588e37846478566b3173d91f740914f1799f440bcb0d0d1f29651b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}