{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "606578440",
    "entityType": "Track",
    "nonce": "0x26d29b42bb8696b0bc946c48b8fff9cb73be24378dd7c70f74227662e2cf0660",
    "signature": "0x596247e0db3bdbee97928ded8fad4c33d21fe3227c9b9689c8e6e2a9c7f9874f37069f5e03ff8afa28a3be95f0841d750f97a4d38489d22641a10ba008dec0831c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}