{
"manageEntity": {
"action": "Save",
"entityId": "785288968",
"entityType": "Track",
"nonce": "0xf5b1a841a718e5bdde6f019983f23d6269bcd62ff547d361dd204216c132908b",
"signature": "0xb960f83eb681d5858240ce7f31d792f3ca653dceddb289d9afa86c1f3e96f2063ff4be8a9e3e41e8596a45a8a0b274379bdd7b5ab0aed44f8b294574fde2aacd1b",
"signer": "0x6AAB6EaEa3f7F15750b649C269b0391dcB19dEeb",
"userId": "92019297"
}
}