{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf937a68f9c2f879ea2b4f3a1b6b5e77d4e90c0ef37f3fdd8b88609e3e92c3f79",
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    "signer": "0x8159c74A0E0f2188668E1D522276E130dB97B547",
    "userId": "558721253"
  }
}