{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe672475bc2ce914dc65bfbc144e00a07e171b87873299f649ddbe7b90a6c707e",
    "signature": "0x5a76635856b7e20e7653007ef3d2bdc9a4df5d2d671c3a5bd32327b272c9123818b7f2713367ea37b18686cb55eeb85c8a1b23780072ef7cd7c81030345280b21b",
    "signer": "0xb1CbeE1ECC0576Ac650F9C8e53808488B14c0417",
    "userId": "111842441"
  }
}