{
"manageEntity": {
"action": "Unrepost",
"entityId": "477058427",
"entityType": "Track",
"nonce": "0xe73e1adf3995a483f7e9674ff7666f6140cda2031a81acfb3f7eb561132d64fc",
"signature": "0x15bc46e4d30ae751401f560c598bd9b2211021e279129aaea6f075321b34f8c44846815be073a415b03199b783acb907d3fd441f8f802305e3f6d02268180f131c",
"signer": "0xBb1A5ca427D79479A5a1546E3746E3f0d0ACD1Ca",
"userId": "663205542"
}
}