{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xda0fe027c92bd58df1f38533fb2bd3667d44e4be71570fdf6efcdd91059e9085",
    "signature": "0x7915a1b01d46d6e05f0f33110c047e22df2989af7192b3d713c3147afa63608f3e1d335eff27346f254d7ea5de988940a6b54222213b97b7da07b6999709dbdd1b",
    "signer": "0xC4e201BEaDD3933E76e562c99f9F367Ced3f68d7",
    "userId": "533673360"
  }
}