{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x3cf309f8c7a56b97a9ca96c4580dff062ac0cc7642a159e502a6d120fe439673",
    "signature": "0x08925a66cc11bf2e3e1cb595c65af808c16f1d8ac50d69ab38dcfdd5740d4c833698c1c0f1102e9265a47e91ecd062830dd1e10830a860590586464d25ca11751b",
    "signer": "0xcdc0734c3fb9B0268b57E3D7c349CDa461D3eE6f",
    "userId": "29056"
  }
}