{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "145445",
    "entityType": "User",
    "nonce": "0xf75b9ed99fc2914dbc7eae1e4cbd90bfd022849decaa82a46e9e84af0efa24c8",
    "signature": "0xf67982ec0859c8f6733c95f4d7576b7a7d4f142e80fe00107cc4f988955d7db129ac8cb6fbc7c64f4de280bcfd030f1010d8c8c66be6b5190c1ca63f51edc29f1c",
    "signer": "0x4A868B813a8F5D7C187F9f07a2D7e7A24355Cf3f",
    "userId": "185302"
  }
}