{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1664865152",
    "entityType": "Track",
    "nonce": "0x7ffee96a84d16f74da50f7321547c5dc270c3b54c5e2fd5c48beeb3acb5a8f48",
    "signature": "0xb2eead8e9ce6c4a9b00881ac7b9a30d2f22ad466a3f9f758b5be0dbbc8887c800b21ebf6ea3cfa67e94a4d0983e8f2bdfc8b0cecd037a2673cce6573dc1a76bb1b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}