{
"manageEntity": {
"action": "Save",
"entityId": "2077579810",
"entityType": "Track",
"nonce": "0x09f4ce9cdd07c1ec43590e2be0f61fd45bcebc55caef35c0fc306b3d3f5593c3",
"signature": "0xb349d5522acc695daad05c857851cef2edcd941227a7f3c13acb51aaae8f0b61597ca6389a3bf3a39eada8824071688b8cddb0c49ee824bdf3324a89fb0e04ac1c",
"signer": "0xaBca4973b8911Fb110a95E6e00e5BBFBCa671473",
"userId": "832058678"
}
}