{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "301637",
    "entityType": "User",
    "nonce": "0x26c345cd56b1fcbcf87ab4b579772e65f18fa8fcad56dd11bfbe3018e4d1799f",
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    "signer": "0x67216abeA9426CEfd3d7051C3827Fe15c76aa6Bc",
    "userId": "121201250"
  }
}