{
  "manageEntity": {
    "action": "Save",
    "entityId": "1262103544",
    "entityType": "Track",
    "nonce": "0x2a48c4c9f1cfda8982884ffac2058d98a22dd6b0e531919777b4413235e48b94",
    "signature": "0x29d59d0a39a6dc6fbb5a1fa8a70583cde92980f8ce77cba17cb64646b3797d9c57e35c6a3a60f904bfd2ceaf92db58271750014c15823a87abd83ecadcf9ad731c",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}