{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5413",
    "entityType": "User",
    "nonce": "0x8dd3e5021f9192038cd763f1b34cac89a2d57aa1c853268ab1493b4df7d605a9",
    "signature": "0x5f8940ef53f49eb80bb35b796e28bba6c0a0577ad2b388528058419bbd38314c670734d08e87791bf0d6f294e6e4df2096e437a9f070e44563d2f856e0b4d6501c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}