{
"manageEntity": {
"action": "Save",
"entityId": "13314624",
"entityType": "Track",
"nonce": "0x38084e383c3faf3d2d4bdf1bb80874b4bb2637452949a03b3b5d0814035cca5c",
"signature": "0x3fe19b0e66801590b3ffb1f0a3de8fe9c78ac2470b2e66b57c9b590840209a3b0081b8049874879c8beaa56581cb0cec92105470731ec85bede7138703e01a151c",
"signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
"userId": "77551267"
}
}