{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "100976759",
    "entityType": "User",
    "nonce": "0xd06c3c4e446f3b55f0ede2f6ef8d80e7ce0fe8476e9b6eaee1cdab65a73d9a0d",
    "signature": "0xdec45f83fbb3cd8efb0804685b8bb74adca03a372ba9b851e564bb91e2942a743c8ed9eda361cb07e9bab499ef7b980fd2f8fec8d441d6c60b6798a4a39f60a61c",
    "signer": "0xbA83b3D0645C0C99c76cB296B0BA81bD641DB81c",
    "userId": "951995708"
  }
}