{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "264106658",
    "entityType": "Track",
    "nonce": "0x79b6688ba47c4e8e60b884e7f0517ba7e8df3b549374fef7850d539c02a5d293",
    "signature": "0xf54441f7e37a7c515d7cbaed9f3ba9fc30616bdac0900b11bb31a783b157fe7a694f92038a83ce11c82768063a7e39d05201d07fd14bedd65525a1317d80fb591b",
    "signer": "0xd12A323399559A3773F865c8F21031bc39c29135",
    "userId": "219968466"
  }
}