{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbee0f5b691eac909f037997445f84822826fbcba90fdb09880ac900843cfad2f",
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    "signer": "0x5B4a8594975f00b3278cA5447Ea60256718E7BB3",
    "userId": "302311"
  }
}