{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "438921",
    "entityType": "User",
    "nonce": "0xc6880531321934d242cdab3ce1dc8cd6f1f0c536e18c13344213f6a9ca18dc59",
    "signature": "0x9f4149c49afdff8e0395964dea1740605e998ae57140adb158aa29e673b644ec4f229690b29cfd09e1352064f667adf4b7be95e8d86f84702dead56c547bfa101b",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}