{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x9a1364225524fb5fab9a60ab57b0f3e1cdc0561f45a644d43a0c56583b6b9556",
    "signature": "0xb596c2bc4f037f9864f54fba3a0bed64cbaa9c3c506faa8a59dcd59ab4e6879473dde40e90911f618a5aa725e5de1f11dcc09e7b653ac08d083906241df55c841b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}