{
"manageEntity": {
"action": "Save",
"entityId": "275978032",
"entityType": "Track",
"nonce": "0x3aabd6c6cb030f7e647ff7f56101d5c82ce34019b2a2a7a24a11dfcd7ebc0692",
"signature": "0x412cb8dde063e4cf169e5a468a0d4ac8ee0842b051b9ed839e0699ac3ceef40a37c0fe833bf5678592dc70a5924449a44d2821fe89f0ec978383551c68f504c41b",
"signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
"userId": "614212580"
}
}