{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "55090",
    "entityType": "Track",
    "nonce": "0xa828f2a207111d88e8fdd2a4f5ab484452f9970d0e67dc41967ddd1bace24f21",
    "signature": "0xcb93fb23029eb6bfb0e9a2a3657d0ff272224bdfa39473fe9621af33de3acdd64fd04342300afb170eac99eb849c9134b143f4f4de7876e7483dd7cd93e3088b1c",
    "signer": "0xe718C117f3260e4EC103f89233bA76c04C7dEfa4",
    "userId": "156602599"
  }
}