{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "288826",
    "entityType": "User",
    "nonce": "0x9af4507cd5185a4fd63b44f3c69b7424344c4f083cb4762b539672f08162321a",
    "signature": "0xf7ce6ed0cf6400e74d7cf8de2bb25051281dce202b611c7c587db8197b691ff922af64bdb240e26f6fa2b6ed13582caf0fe0f28ba7f0cc014a18ab64256ebbc61c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}