{
"manageEntity": {
"action": "Save",
"entityId": "2072451295",
"entityType": "Track",
"nonce": "0x403e4b8ea3c99368c28698ac7badce74c00f1b1e9272293149ffec419d799fe3",
"signature": "0x9e43f129d7148b4a4b5b39de442102ead6c1db785b19c7c7cefef16516553f9d52bc58503d6a042c99574332e56d48113d887ed95ce336964b455b6691ad68631c",
"signer": "0x2B171214e998033E806F72301307B2160CD94DdB",
"userId": "489165782"
}
}