{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1889192569",
    "entityType": "Track",
    "nonce": "0x580087f3ad624348091ea3cfe36bcd36de936ab6ce3c08a76e847d7eebedae57",
    "signature": "0x2ff228a77e1752e7eaa2d2553837aa563e69860041a1e44c7bc8d50120147e5240f4fb23644a43c4ae4949604330a6e80d2fc05cfa5e027d1f30f6336e6d09171b",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}