{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "720251199",
    "entityType": "User",
    "nonce": "0xfa6aa2659e418bd5c0f488a07f9a1eb5c8c32dffe92547be592417572ab7fed7",
    "signature": "0xf22df43dd8074e94f8d7c51a1012b1f71f036b077118f776208139a58040b4d20eb75fe863d65dbc6cc7362fc146502550072b2f427f647f7ead6ca65b6542301b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}