{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "868892842",
    "entityType": "User",
    "nonce": "0x74d962faea13a852630463cd1e9d9d09042b01d28c3548d2fdc5f097f1ae0e44",
    "signature": "0x261da263c393a61d6be02d9fcfff4f39e06ba0bcefe1035da9678ffa30875f12543f74dbfd7a5fc0d60a2f2e6adfd60d172a1568d0acea47a140a6915700a3ca1b",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}