{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1285803970",
    "entityType": "Track",
    "nonce": "0x6732b8789994da9be540ddcd45735eb6effff151e5dc079c6004bf187e468064",
    "signature": "0x8dc198cdbf44913961d2aca7ef796a519827be6d8bddb681c89dc7563ed9af581b75552e6a4c70d1bd4920fe469d19951b2e8ae498890fe123761a730c99efa31b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}