{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "917715333",
    "entityType": "User",
    "nonce": "0xd4afedcaecdcb37b97d5a9fa0f406186380f6dd38577579de0653094450dea5b",
    "signature": "0x41520d90c94eaac9cc606025485c981ca269e6234ff2e3cce1982dddfddb7a7f02f8d7151771de1150e91ea876926a096c2523974e27fe15c810b0ae406f0aff1b",
    "signer": "0x3D472a01Cb831ac594835ac6038A4346E2A22B94",
    "userId": "327343"
  }
}