{
  "manageEntity": {
    "action": "Save",
    "entityId": "1863555091",
    "entityType": "Track",
    "nonce": "0xdba2b91a46008b7dd34bc3c798016adfd15d1040ea3aa9db2ba04960afc082b0",
    "signature": "0x7441e2193f0d5c44769c6b20751de12dfcac1b469baedf52418f26bd3b909f4c6b451ba122f6e091849c415fdc92950e930695303d03c16cf773b78f2579b1651c",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}