{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x581ad6887055a29511a1fcaf5e42d8756ba199975fecc382596982b75e1852ae",
    "signature": "0x64ddb98707aabf42df21276306f2e03eb0545284f0e509e978795f92c3c31fa22369d6689372e931e4f738ca31aacc7a1c8ff0f46d37edd0e4ed1759537aa8b31b",
    "signer": "0x111898DC8962B5a1A862DbC1DF107cC8c0E70078",
    "userId": "614130638"
  }
}