{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1306308393",
    "entityType": "Track",
    "nonce": "0x2b5c237e7001a9f91e1d3957ae0bbb3958a4200678065c610cc562d92b97cb76",
    "signature": "0x77208e0e3c5a9b87d947dabfec80a32a34cb7023bb04afed1d15ecb027c2060841e6caf1c336e17ef1e73a694484b2eb8bd4912593ba666c13b3c7227272f72d1c",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}