{
"manageEntity": {
"action": "Save",
"entityId": "1677224463",
"entityType": "Track",
"nonce": "0x87fb1f1a73d69d8877d71dec8ac4c08d96814ee1b65c34b4d0c71de612a6021a",
"signature": "0x8f1adae914187b23e18481c939f2614d931aad70b38475e501496161a6c5b1060fe768efbf5bf50a0c1bd7b71c44c0814bfc4ecfee018792f50bd71528539ab41b",
"signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
"userId": "614212580"
}
}