{
"manageEntity": {
"action": "Save",
"entityId": "482256185",
"entityType": "Track",
"nonce": "0x50703ce1278f1e525096fbc9c1e7ac44ba940a439d26573245769af8a49ead9a",
"signature": "0x9fea9d8ce663fc377dc4f1a2fd2ec01fbbf90372bf28b18994f707f6b522c3b33fd2997cf11d27c9df671481483efb6958bb567d0d3e6d8650f6dd60d5be4e0d1c",
"signer": "0xF08935327AeC6306C8d0eb92999567e5496848C9",
"userId": "989073793"
}
}