{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1817874894",
    "entityType": "Track",
    "nonce": "0x379650601f36ad5c25c8b0d016ecefcc779b7f751a3fd14b560eb05857eefb2d",
    "signature": "0xd18ddf34a0349b29eaf66962bd1d2a1a621951998b683efbba3068aecd3ee8f9340c2a8fc90160cc250a86f9a7a5a12fda8ac14dc67be516f4dbc71a2535e6d71b",
    "signer": "0x59765b22C96E88dA578af23E8611d6ca2dcCd7C9",
    "userId": "377610060"
  }
}