{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x690688399973a0f8e84c67f6e1d74ce7769d7673627f20775d86e6291f69e9a8",
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    "signer": "0xC0dDeafa7a89C5C1D93A26D3A12a7d1978A866C5",
    "userId": "729568521"
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}