{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "381292764",
    "entityType": "User",
    "nonce": "0x5497bd1c4760398b6bf11b26607d94bae8e4439879d546d13ec0d63fca472d59",
    "signature": "0x6c0c86259d084ce57916572c5c2036424b7ef692b84827e5c21ebbc35c345b6b16f5f05586d943e9dd8c15feafe5b00c3debbbe5ad955c1f7fcd642cc401bd6d1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}