{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43430",
    "entityType": "User",
    "nonce": "0xb10ee00e44bc5c9a75e0999bef27fdfa4c86733e2c24a912ab288e3b4e05d053",
    "signature": "0x43435409560c78346d8b89a3cda213a365b374d2580da1cfe04bd7841505a08f18513e94ea2cd0fce34996d7a027d392f573f7f0fa52ffd7be51f4b6a1a4067a1c",
    "signer": "0xfC577feBb409AA095E990E5446388414cBFEaDbd",
    "userId": "29114334"
  }
}