{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57751",
    "entityType": "User",
    "nonce": "0x2bf0d53d6704c80295d809da23247d3a694e18659db53289497b7f2f8168010d",
    "signature": "0x74f409c7c9d48ad89537d95124d54428b4450e470ace29ca5e37341fb57ff19543bbecf5fc07c6896a2bfb9b4488eef78ac9bd7a483f2b4ec984684c6f758d7b1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}