{
  "manageEntity": {
    "action": "Save",
    "entityId": "169096",
    "entityType": "Track",
    "nonce": "0xad7ed44e1cca0d8e0b6aafdde381c17fd79796dbd5a51793b627a11f8b248f72",
    "signature": "0x3cabb40df64e1fb963d4583ddc819e2079fe00113f3b2393d724e796d048a86f4757b1fbd5b6ede941b7323126386c6e89f16b1523833ac14eb8d211f83c94a81b",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}