{
"manageEntity": {
"action": "Save",
"entityId": "222429",
"entityType": "Track",
"nonce": "0xd82228ac8ec0654b52691e4e54fc94d82eeecac2e589d216dbe8ed11ce559855",
"signature": "0x3276eea84896bf261cf81639adcdc6706a400575588a2a96e67ed3d21cdedccf689bc8dbb43dcc124709c6732ce3da4a8cecc059d692ed43d0e88857f66685361b",
"signer": "0x766d742Cc35188990Dc38CaD8006DEcEe3fAFed5",
"userId": "353834"
}
}