{
  "manageEntity": {
    "action": "Save",
    "entityId": "1131367150",
    "entityType": "Track",
    "nonce": "0x92518c6d898bc77a0312c9b06572fa2eb75629a50a478ee0db105460eb21573b",
    "signature": "0x2dde3f9853ba4a2801227a5c87a2cfef5cd42f36db0cad5a3750b8303cf833770bcec68fe041142bf456e5577253949f425c9c4e21b7206b7f2fbb5383d2cf251c",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}