{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7241",
    "entityType": "User",
    "nonce": "0xa9a033cf5600e902e6cc02290adfde65292c7f2d6f658aae5acf32c044a21779",
    "signature": "0xc3e5293f89e27ff74660a3bb94097e8a9b54bb2a075fe48f7c4c0d3c2d1cb9870f6808fdf8f722ccb55049190b78e0d67a24093a0b93cad5c84202f2d645fa971b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}