{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "109748803",
    "entityType": "Track",
    "nonce": "0x2949961d8c93d2e56d3926c3fad19de77e482437d0e66f53d338a73da91a7a35",
    "signature": "0x840a44e5daac52a3b3c8cf654d69dc1fe67c535610bf2954b7bb16b3e823c8b2710d2f170a7e8cced118e1866e309190ae97b6244718af3a706381b08aa9dcd31c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}