{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1622203047",
    "entityType": "Track",
    "nonce": "0x7b7521650f4e1ff9dd0510e80c8f7d9aa469a423135a824bc8b3b7395cc17118",
    "signature": "0x3e66b07b62b5eaaf398030148106fdea702ac520564da122d13e1aaacf4ffeb62f8738851f191fb98bc95988d82cd35617831c4ea955dbd142d8113f556537a51c",
    "signer": "0x136A4e19270387bc21d7e58a9592D46864B0Ad57",
    "userId": "956002390"
  }
}