{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4446",
    "entityType": "User",
    "nonce": "0xc3eded50096942d28d4a668666965b6251f2538daae1906a9fa1930afefabffd",
    "signature": "0x1cff49adf0c71add9a534da685e9998699580a88d2a4b9dcb7cacb23e0688f104cbf6eb9f4ae4534d7a0c07f3b9f266589bca5c71a20ed20660a20b5110c15e11b",
    "signer": "0x5617e33979Af319eD3a9a6bFF820d69b7e8877a9",
    "userId": "171261"
  }
}