{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "335589",
    "entityType": "User",
    "nonce": "0x20a2f70dcac5ec5b180aadcb16f327f5f5ae6fa59b4720fcfc5dacf64b8aa41d",
    "signature": "0x9e877f666d08878e1104b37d92fd50cda54f42fa9f96f7a215384ed6569f2817314c2001b4fb87c04039819aa9ba161bfb0a70475b1dabe10f9dc264557ba94d1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}