{
  "manageEntity": {
    "action": "Save",
    "entityId": "1725190130",
    "entityType": "Track",
    "nonce": "0x7bce7f7d66590ee5e020827717c2fdf3567f74011851a2aaf0b3cd2df0bf7a39",
    "signature": "0x9d3ed624e698b92dd3b8e7da0a4e8101d29c41891c998ce37812835d620b01537f3a54a035b1e1b005008a9809e80203149f4111de4df555d1b17b0cd9b565d31c",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}