{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe56cc8b8fcf823ccbe277eff59916b0c72b1189dbb2e134344a836e270acb8cf",
    "signature": "0x6ef0fb27f721e65112a479c29a6c480d0b0ecde732e18f1658a1510cd549d4dc1cab5ed6a7833f661d712e2cc58779661728821f0c67a9f39401693a51357c1b1c",
    "signer": "0x453b81E8d5891F9B543FF079D4A5DFE20ef61F1c",
    "userId": "740967857"
  }
}