{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2057",
    "entityType": "User",
    "nonce": "0x9ac87cd3547c34bfb1302b587ef58edc8e498c5f34ce484a015726f0bf5091f3",
    "signature": "0x28b4c844dd61d7c75e9468f1da31a8248bf4c0fbf5d6cfa615f3089bb01bace7716cf234dda9cf3be2f5465ea7e5f3c5a88d3b2417e86a1d224a59f73f390da41c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}