{
"manageEntity": {
"action": "Save",
"entityId": "371161506",
"entityType": "Track",
"nonce": "0x2a365e1d0b99acaecd4835b5b1e6b8a9adb03906ca3d7f0c4767bb8a79b623ac",
"signature": "0x7d279ae99460b2eed18ff40e75db43a2bfa6b8d0848ab75f875572776338f088754a6e1f9d1b4b193683ee50674ddcff2f3ce68aba5bfb80674e8d9498e585261c",
"signer": "0x7101d3D7F09Ca73A23b495313a1055968bcb94Ce",
"userId": "347769544"
}
}