{
"manageEntity": {
"action": "Unsave",
"entityId": "1437602267",
"entityType": "Track",
"nonce": "0xc9aabb2f55a690e41d0eb57a427d079d781f661c0d7e31e4fa7e58313a123dda",
"signature": "0x6052b95ace07e0924daa4b3e2c9e6a5b42ae96cf8c48b11c10bbe40a4daf0c7d4e1258ef9a20cd43de4be47c8c06de260abf380711e3e41084467c967b7b15831b",
"signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
"userId": "728570067"
}
}