{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "917780037",
    "entityType": "Track",
    "nonce": "0x12f81fb990d91fe065b03b7267e798f9b35ba0f58178bf7652496f6c4a410ce2",
    "signature": "0xb2c192fb721e5476b262698a86c1db12ef1a65461db33a707283cb2bf662743824000209aef3109a69556a81ada2b508f4bb07dff39f622d3f9f5eec39799b931c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}