{
"manageEntity": {
"action": "Save",
"entityId": "2088544886",
"entityType": "Track",
"nonce": "0xc96c4ec372899188ea12daa1e7a60f31c9abda9b8533ff27b604629f22a15748",
"signature": "0x26ccc891e88a681a81c49d0464bafe27cb3eec2dc1a96600ccf17d92629fac1f510944b074cd0e5c064bb61324266dac930857028e0f50fbb586d0810910ccb31b",
"signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
"userId": "456716469"
}
}