{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6d8e4de5ba2481c93106a66db3e88f839b81db0e1c1f495dd0bae80642eb66c5",
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    "signer": "0xE0dF9407B39a8Ec91567DE1940F988b6e37C17F5",
    "userId": "373509365"
  }
}