{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0e4532af0ad27f9ffd67bfef912dc5165aef12367a57b3324c9da2fdaabd70c6",
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    "signer": "0xc8E4B9d53114aCfa5A3250a4031E9A6E9c60A2C3",
    "userId": "519502602"
  }
}