{
"manageEntity": {
"action": "Save",
"entityId": "606578440",
"entityType": "Track",
"nonce": "1792490753907803690",
"signature": "0x9f5e15b7946304f7366ec29704c6770f92f74dcb3520bdb0af16f97c953ca80b63821e529110b458d9fceaa4721f3ebc967d5bc6950f48f2887d3938f45fcdec1b",
"signer": "0x9B241b1a6A99d662AE67D328e091Fc94faF23fdc",
"userId": "881446128"
}
}