{
"manageEntity": {
"action": "Save",
"entityId": "929074131",
"entityType": "Track",
"nonce": "0xc47679d47e4a258538a9a66ab236d9db7fa9cf12c018847656521deba8280773",
"signature": "0xe35329ce7fedec0dfd58d77003daafd7e5ab058fd755a2f5a2610503dc468d8e02f3b4d229dfb90092048a76e17ded339c1a6d2fed929851ab989fa65e753ed81c",
"signer": "0xE7A4a8f1d081B44C96Ed68610B6c3016ce8cD6E0",
"userId": "464427506"
}
}