{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x862a243095edc3dcc4db278dfc5d070cb3ecb8f65ffd023bfb0ee4e2bb0f8174",
    "signature": "0x1f0c4ea661e280e1e01e164362217eef12d42509c299218598bbeaa67880b7ee2b5dcfc77d21903fbe1ebefaf2458568bc42009c2fcca27e79e027568eae82641c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}