{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "488260308",
    "entityType": "Track",
    "nonce": "0xe46ce07440a8a0532022983a1edf4d6ae807e94a2e44d3c609628770a3ca64ed",
    "signature": "0xda843595c255afdf72dc901e8c3e42f405658f23367fdc37cbc81bc8cce6b6993b63f83f359c7124e3b7101b11d9318379d96a0514aeaab9a17914edf4c577bf1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}