{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "617341845",
    "entityType": "User",
    "nonce": "0x0aee5540d4591cbe26a76aa5782a93f5a7df1a3319453c043569771ff237f045",
    "signature": "0x6d9095a70c1b658905b3140de03f5ac4bb1b7dd50d8fd908d55e5c317fbba49722e0107011b6c29170209e42c7ba47e2a95f606652518ff9def8af00839ac9cc1b",
    "signer": "0x0fc01DC8883Ea1720b1ee49d3893003785B6C8F2",
    "userId": "879267217"
  }
}