{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1335045392",
    "entityType": "Track",
    "nonce": "0x52e4c2f249764e0e4dbb6b807840dd3e17e650dd64f4a901614cdb0e16477665",
    "signature": "0x67d1687b53a685e91d330ed601791d948836ab9b823a0e4cde9cc0f66689c16178c2d4f520a07da9fae577d7894a109b3021a642a5bc79aab58bac730d6ffd2e1c",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}