{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x90d8715f4f4852083457e51731e566f4c9718d3a62a3ed2f2ecea4d063808ad6",
    "signature": "0xe6924b1b88f73f617ed6a12f3e96d6abbbcd809a97eb1f0b4d198a425203a55e16506f170ced3491cb6029ab0628ef5c02f54f5f4d079f216d11ab79a27c2bd71b",
    "signer": "0x0aDF4E4289dc86baA39276037bBF25017Ed782A6",
    "userId": "68524173"
  }
}