{
"manageEntity": {
"action": "Save",
"entityId": "2130762820",
"entityType": "Track",
"nonce": "0xc14b8a6c3e89a21d6ed81849c113d01d06311105caa0b6c8504fa8c406fbc132",
"signature": "0x5d5d90c81c762de8a3fad8066cf1800d7a264a06ba8a8cfc58c2e3c2e3a7668841abd6cc577b7a07abf5534b809df8e3aadc7a089760bf29bac5b4c4fa1018e01b",
"signer": "0x0b901AE3Eb7b439095858D82Ff194CfeD0Fd3396",
"userId": "167557"
}
}