{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xcb93a8d2a235ee79841e773d75256c4a8473c1bc1bb6dd78f6d7fd213e04b5ce",
    "signature": "0xdf8d9f994ed01ce59ed7bd03c5d84ce9b5a34c939ddfe5ac9f048e653a6c34df6ede953197ad0bb2aea819f2d89201f00dc73158480c8f495bb3f61f627770f01c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}