{
"manageEntity": {
"action": "Save",
"entityId": "156667570",
"entityType": "Track",
"nonce": "0x22fc65bd2f7dce8ace1806109da661dd82a0fa41c8ee640e83020ac8d8aa1090",
"signature": "0xec8f73fdfd9afc33df49da050b30ce0a01a141d91808d9c41e37033709f4949c47f9c1967066fb65dff2fb573571821e6771518d4da8ae44589a09f62709da2a1b",
"signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
"userId": "714646433"
}
}