{
  "manageEntity": {
    "action": "Save",
    "entityId": "1722261592",
    "entityType": "Track",
    "nonce": "0x62bb88c9c7ac68e75e4fee50665e1de3256651d7b9ab9a0e68eb899193bb2fe7",
    "signature": "0x1c439f41539bd16b315a6afa920e14214c2feabbdc279f7cadd0e7e4cb3fe6763d19c9e7d9bc733fedbb811116f860ec55d3b3c9baa3d02652ee19ab970d5e2f1c",
    "signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
    "userId": "35918963"
  }
}