{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "352445",
    "entityType": "User",
    "nonce": "0x01147b679a1242215f55a5d8d8d8419b02bf6f9597088321d76162fa1e7772c5",
    "signature": "0xd7b3b32e287d78eeb732d5f05876dec9046365538ad9b06015d050f04881dd181cfff481e95d971bd98a86b91960a82cb9ab7e971db17c55be10feb7cfbad8291b",
    "signer": "0xF7F56DF4D8a2Ae2BF9Ca645DC684f84c37BbDaFe",
    "userId": "116272245"
  }
}