{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf3ccd3827b77cfff5de6832e643f1be689a351f2fd5701ace1c102e1e4d493ba",
    "signature": "0xc65e91b7b9c97673e58a037196d27b4b6ccf758d1c2e7086cd8e9dd99c0dcbf663a06e17f513c354e25a1bdd5fd565ea566b5ba88b23f6a64bcdd2fc0161edeb1c",
    "signer": "0x129e5351A0d2d9D2Dc9F5188B3087C7BE24efAc9",
    "userId": "258202002"
  }
}