{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "511541",
    "entityType": "User",
    "nonce": "0xfd49e071c94a04fd0f96a5f6d7008d0555bf3038324a7ac923e6a22d0733cdae",
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    "signer": "0x4A868B813a8F5D7C187F9f07a2D7e7A24355Cf3f",
    "userId": "185302"
  }
}