{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18937",
    "entityType": "User",
    "nonce": "0x1a2c0bec6eceb0389eec90baa59ef603f38ad8859cf5a202b6c2eb5d7550ec79",
    "signature": "0x89840570e14e4b945b18e93b2f91d14f631a4ac11c162d80020ff221effc6f460a70f7e5e7de63e6a5b9669bc1d8862c85b3dee0afced75e0adfad4fdae152f81b",
    "signer": "0x6802Fe39C5FA9f99ac1Aa32F164982185A3E70ea",
    "userId": "152482938"
  }
}