{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "508186998",
    "entityType": "User",
    "nonce": "0x2d525702915d6034dba212e186d6623ed61a179c3f903c8c0759ed50aba6cbfd",
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    "signer": "0x9Cf4d5aFdb327Bb9fb209F7Ae9Eb7E3BC6fA85F8",
    "userId": "723085841"
  }
}