{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "667016904",
    "entityType": "User",
    "nonce": "0x7e0808f9fdc0f982d5e8ffaeb241d603f109173cf124ddb7741ef283807b4925",
    "signature": "0x6220f400063f6150174920fc84c57654dbe6bce6f39cd1509c266dbc691a29ea6b0c3aecab3bfea026adcadd957d7466f3f2d43f5631b853c6d6cb198fea98de1c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}