{
"manageEntity": {
"action": "Save",
"entityId": "88484",
"entityType": "Track",
"nonce": "0x376c4dd2f56c4663972c41462dea2790f323108a1ae3a2f05246bcd6a7d62817",
"signature": "0x20f9936466f0c8042098a67abc9d4f255bf0842f5efa8b5a136e06ec4c3b301c74dc4464f84a9ba5b677fb724d63f624575d6b8031f9d61afef3d37c8d3044ef1c",
"signer": "0x766d742Cc35188990Dc38CaD8006DEcEe3fAFed5",
"userId": "353834"
}
}