{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "224454",
    "entityType": "Track",
    "nonce": "0x873d5af5dab4301a80287fb58a2f3f03e178ed14791f4807ad5c89240cd7adb9",
    "signature": "0xe6608aab35f20368ce7351a8011c1079ac87c42583590531c8182aeceac1017b3d88c72fa8c6078eb0d171f68412a8e771b6b6557c37e3846a63a673ce75fb7f1c",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}