{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1ef69c4bc2dd03d9687c7e6b51c55281f77fd09a94dcaa402a27781bf4469bfb",
    "signature": "0x58fd965f3dcdcc43c3118a5d09859239f32b36440f7637a4e5695afdb025fdd940398495b3968c9d230e5ff4e2c0deae8eb71d4eefc1b1d830f096d35b44e3d21c",
    "signer": "0xf9e407Ea4e815d4ec970F822D7b6e38C31E5338d",
    "userId": "869208522"
  }
}