{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x266135b1bfb688facc4743427a49875f7d9869254b2d2683ba5f0a3f233c12e1",
    "signature": "0xab43ba6e746946e8ebb50931202f8ad468c7bbf1e96cacf8dc656c9ccd3b8b5a3c361e0694a9a822298935b4b05a4c28bb388e189fe04cc5eb558ec075d1c8001c",
    "signer": "0xc903Dc0f07bdD225292556170C57c22eD0C2b453",
    "userId": "142317"
  }
}