{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "396700",
    "entityType": "User",
    "nonce": "0x3aeaa8ab297cc4bad8f7a3acf14ef04ed23097e314c1d57a53b7b0f83bbd8170",
    "signature": "0x3f2a2ab1c69e93773cf4131fb1f857ca4cec05746c59ff3b6b9c3af364871abf6a10f727e33bff018039952e070548184e29aee88dd53b53485823c257c058fb1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}