{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x300bfc6c357b32a7363071c2e520e7a228863bfc9bd1f529d24c772d3a2af32a",
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    "signer": "0xCadb35b037c9B660c6E92A375F3d8758501B15Ee",
    "userId": "28894287"
  }
}