{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0x11a796deb418ddede51c2e7f9fd094e6977de81901381c8baee7f2b553d3e88d",
    "signature": "0x1f108c976d020937af19ec46639ab4cc0d86eee0f23e9281f9b65f378100f62a629653e9a9f2893d342b5d683a0c427dea7da48de99a773b534ce44cbba9e5f31b",
    "signer": "0x5Af531A9cDF9747df40f57531227d70F1bdD2ed7",
    "userId": "511108744"
  }
}