{
  "manageEntity": {
    "action": "Save",
    "entityId": "51350",
    "entityType": "Track",
    "nonce": "0x74c9329c28a315bc746c8c63d6656394abf7c1c3e46390a8b874ad1fd59c7d7e",
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    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}