{
"manageEntity": {
"action": "Save",
"entityId": "107925093",
"entityType": "Track",
"nonce": "0x5639af362c521d9f5bb3c3f8c8cfa55234dfc4d773ddb78e4e5f53037aae1a27",
"signature": "0xba5c6d605702512dfdd1a0eaeeac1ca2518ba3c54ad2b24ff415d3b4470e880c7f28c754bdf2e42bf91ea992f894c6420bb0ed2a6db31a48ca533195132602331b",
"signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
"userId": "614212580"
}
}