{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "856252928",
    "entityType": "User",
    "nonce": "0x8abe2ddf3af94b12c65123f8c9a052446907361b18aa36ec5db700ac2a8a7a57",
    "signature": "0xc6bad9565c10f32ed26d6a96d870d209cb62bb28c9e5f9842fa905dbe22997211768d1ae3a7287348d0f6654c920dbca7be29fb538057bf31a2a433a456669591c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}