{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "328894",
    "entityType": "User",
    "nonce": "0x6aa8792409eadc59880c70a9733862ddc4c5a19a7494dae30ff1bafa8f3c70fe",
    "signature": "0x707b5995a03a3d536d8e7f7fb90c6d44ed7da23f8d24c5fe4f5c53c46839a81f6fdcc4d74e8181e1d88a4ed11f8c7632aa4c7bca659886e02ca2dafc96be4a8f1b",
    "signer": "0xad1E2A70fa1227797344FD6df31327a26552461a",
    "userId": "153162"
  }
}