{
  "manageEntity": {
    "action": "Save",
    "entityId": "562170363",
    "entityType": "Track",
    "nonce": "0xef754853bb0487726f4db654d1b062b3c69b876268875ca44c560ed7f4176014",
    "signature": "0x920443c6683a7657590d10f4ca276ac9e17b1dcfb8043758e0b98a4a26e594780bd5f3fdff6b5f0d662cab852a0a82dc98b6d017a3e6a17f227bcad70d4403e31b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}