{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354908",
    "entityType": "User",
    "nonce": "0x090f0c33e91597718db8d684fc5a509d0628194600b3e137a0ce4699ea12518a",
    "signature": "0x6c003c3e219153a3af5c1da6532d9c7e0ddb5e6ac9f7fe4719c287a9cb58c4727226989ca445db9d28a9f02cb60696d84a193505d4281b7072369f240592a89b1c",
    "signer": "0xA9Fcc0C9caCD5528EA8E6874754D8533Ad1a87F4",
    "userId": "293976821"
  }
}