{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "5642",
    "entityType": "User",
    "nonce": "0xc7dcc58dc3cff04eb3ff97bf46d0734993ea7153cac1da57feb4939f2212e4cf",
    "signature": "0xc0e554fc1d0338348f32c42e4e421d18ac1adb2e681a48ce2ed456fca75c6cb038d1861ddda698dc94a0eff0bc0b2152bf08b8db2ec3e0a8e66dbd8a867f6b641b",
    "signer": "0x99b5F46ae3978FB02A645f824e51700B327f1d6e",
    "userId": "97654"
  }
}