{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3df5fa7f32d33d32413ef6044633673ab0f54bd647674c36ad790e27fde50495",
    "signature": "0x55714374de8c5d4b08c08e49d571f9a2c682dc4732b9309f5a6fd34ec447202226cb1f40366840261dab28283747c8470297508d0c3aa181f4e5dae7f25e81c11c",
    "signer": "0xcc4d6605693C8806BE55B0591D77E51E35951b72",
    "userId": "944415935"
  }
}