{
  "manageEntity": {
    "action": "Save",
    "entityId": "959348976",
    "entityType": "Track",
    "nonce": "0xa85bc93ff1f0967d5e7a260e8c32530fa5749dbfda5f92926a147cda022a5ff2",
    "signature": "0x8858db334a48e48b1ad595d31ec87a4961f0a444d4487f42f68cfdc36de0e0645aa3362e0f75b4fde7abe2fa578f0b8e16b823535d47688fe089663da7cb14571c",
    "signer": "0xd85E4A094e4C057572A9D525C9737051A17ab609",
    "userId": "696716320"
  }
}