{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "3407",
    "entityType": "User",
    "nonce": "0x869910ceeba006434cd76046977c78861ea2a326d63d1bc5f85b10a71ee336b2",
    "signature": "0xd5aea1f0a5f69a39f88c8f9fdd8e57f103015c159ad9f44d4f52efbd167e045f432b44e2db68821d1291c8c1279d0b0ab63cec1b85d35ab820b6e64a6866a8201c",
    "signer": "0x77716b11b242ACc386023E99B7e647CaCCcbb8b6",
    "userId": "126786"
  }
}