{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "39181",
    "entityType": "User",
    "nonce": "0x7b8689821284b1ce419d2a00be4176395aa792b1bbdda688553761cc79657d6f",
    "signature": "0x122e8d66578e630e6136f4ad31e220313add2ea228b23036357441273ef8e4d929abdeaaf4237b3ae304209e4c8c5bd3c5e52c962628f4680f726adb8bc5b9671b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}