{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "404",
    "entityType": "User",
    "nonce": "0xb00a9924a2566055824695555f96e11565a8981d6fe455a2248af8165a2b83f9",
    "signature": "0xcd4999ce7356245c641c36b12a970f0b52257c30532ac4d540b248b4cddfed543fa8b320c5aded98f522982042a0ac0324d9b67d275e4381ba03730785bc94811c",
    "signer": "0x3B446829846E4Dff44d7a596d5B5E2e7F6f2A2F9",
    "userId": "784506004"
  }
}