{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x858df658573326e53aa63d2b51aa35b128ec082f3a42979439d6fe84ba608da6",
    "signature": "0xe35d1bd707c40a1a27fbaf2cb16fccfc9296e6a4a15a095d7910a00c3f1a88a323ae18e6a118e19a1657a96f43c74b0c3c0cad61463bdce6d85bb1387186abea1c",
    "signer": "0x20a821B898F6Cb6BB0E5FB2460eD4225B40Bd68D",
    "userId": "198400104"
  }
}