{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "447798047",
    "entityType": "User",
    "nonce": "0x9e2b09d5fac7d838998776190f85cc863545fa76b0f744f4850c183da9d2a910",
    "signature": "0x759e2a04ce6dd4fc9c3dcf3c9b04912185b9e363e4866cc2c2659df2bf1ff4dd7dbfa175a789e8b4f3c070ab437c5964ed0678f319c73aa01f387b3da8ecaa7f1c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}