{
"manageEntity": {
"action": "Save",
"entityId": "216525386",
"entityType": "Track",
"nonce": "1794005253995407603",
"signature": "0x7084f43adf2f55dc92d34badff0218c8c08e18d5f9abeb00da223db87a6a38763df029944fc61bd9927cad90fce7266f33f61b35deace51b0f6ca2755fc79ee91b",
"signer": "0x6620103988B969bE5810F1B5530c1A44Fe6048A1",
"userId": "568518925"
}
}