{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "353528",
    "entityType": "User",
    "nonce": "0x9dea2530113a25c1619f6a1218432c87ae110e3441dcd7c19c8ba1b17f9fddb4",
    "signature": "0xed7382ac47056c8da41dd0f7a708b4d282c96ed6cce97b981b1e2459e50476346fe216b56a7d21e8533c18dc9c833a87bd673978a27ce3bf9a10d1a3af679a581b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}