{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "992207773",
    "entityType": "User",
    "nonce": "0x49cb3ff409b51844b4be549fbcafdab8f64cebdc9a6cea4a6863946982c737c2",
    "signature": "0x3c51b0768864dd2bfc02e6a1577ac3e9178bf7d865042fa203e5257306d9dbce2aac62d057f8cb0eb716aa7a69c37474606adb700c7d7f17d55465f72833ef981c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}