{
  "manageEntity": {
    "action": "Save",
    "entityId": "1262493156",
    "entityType": "Track",
    "nonce": "0x7c4a71f93f1e0ce4d5ce13d7debae88273c158fa18f67a8febd35331f0ff5868",
    "signature": "0x6c43b0dd26608a55598f56766ca6230189c8cce1a87e90404c203068a1fb5dc967828597775f8168f1aa7a106c49d857b0121454d5d184c1a9dd8e893ed7449a1c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}