{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0x8587a64919ae0ae3a84efb21314307753e1de089b068084247d7018db70bf833",
    "signature": "0x16a54eb748711be96d15d982717c48b291ac26864926efcf4b654f42f2c220b25fdc3678c61ed124c4343c2b527ae941be21cd429686f27270c495dd0c3e2e401b",
    "signer": "0x380Fe18384267CA159c9Db6737B959099be2a515",
    "userId": "381292764"
  }
}