{
"manageEntity": {
"action": "Save",
"entityId": "889080956",
"entityType": "Track",
"nonce": "0x44f191851e94ae398c9420ca6c944e5726431c476b67919a02283c10df81f377",
"signature": "0x4b6f30d37e3e1283c115a712b7afa3bc424b1dfb23b3d248f0b360cbc4d2e9fa3eadcab72d7e9f2f66799affad00373c396b672f60318047db54c0ea4e7799ea1c",
"signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
"userId": "614212580"
}
}