{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "16564",
    "entityType": "User",
    "nonce": "0xe7675899107183ef15a370876191b4669fa56f612ecf3023fdd8e6dc914bc768",
    "signature": "0xae17d43a3f865d3c2a0a109ba8e9eaeaedf665f70919125125085d404af3a7585a63f7cf6b868f00dafb6fe13bd9a6a22e4ab59794259a1234953484c25dfb551b",
    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}