{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "502361558",
    "entityType": "Track",
    "nonce": "0xf455ff17a1bb449b0c76f82577803fe8cb0668332a3fad5bcad8f15beb45fe67",
    "signature": "0x0cbdfbcb9accfe78e8a03a4e234a151320e0af8dd2452cc0e787f94085ad874862cc4cab8a3de361711a94eb195b64df82fcb48a666c041009155235ca29bc0e1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}