{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "89",
    "entityType": "User",
    "nonce": "0x57b47554188be419835f38f44a6aa555a680454acbd9957f0610134301548ea3",
    "signature": "0x55c56501cfa91d502ae502c4f64367c7af6eff25f36d7d44cc9b550355f0ec6a2d6fc44bf752ba8622932d9808ff8d1ed6b9d244aadbdf3a10731d01d7c7c6221c",
    "signer": "0x52F331C086a11941E738a6C86d9F127E934dDEB1",
    "userId": "281470566"
  }
}