{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "399822794",
    "entityType": "User",
    "nonce": "0xbf6e6634db0569f9eddb08efddd37ee4f4d6735824118349f5ca3742455ad874",
    "signature": "0xa0af2f1fbbac4022be81f9bd3cba1cb802ad42488b55e8d705cfd5ed99b4d9f54dbac889ed8b54d161e9a486d41df43a4e4466b773fb9bbd216247c81a80f3281b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}