{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "40839",
    "entityType": "User",
    "nonce": "0x0e51124bf79a7014a96263d3e26cf96950aecb328511acba9aa6d79721105c50",
    "signature": "0x1538908b8de16175280a7367d55344e8a1d301b6b3354cee42563d98fb2bd3475c2d44858e34ff39bf677d7e8d4d1bd676c7a1e2ddf4a7ec44bc2e63751c92131c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}