{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x776b2b8464364c02bc475ea8cf0869b687b67eb3f88e8b04606ecba22049086e",
    "signature": "0xbbc5cf04a958b72fe6a9f0b9e7217d949f8c8d12376256f9628df290c7bf056d71de9c4fdb89bb7237246f4a0c9c9ae35fcb373b6723bfe00ed7e7c8c74e5df61b",
    "signer": "0x996332682B8111bFf60d77f17304ce0311Ef3e85",
    "userId": "197159436"
  }
}