{
  "manageEntity": {
    "action": "Save",
    "entityId": "92181232",
    "entityType": "Track",
    "nonce": "0x82b7337732c17baa0b4466f7aaba8598300ea99b4a758d01156239b60dfb7f0c",
    "signature": "0x910d189a810fe085639aba7c7cff2b6cd8f8564efb5ccf57c0c1e21946fe68da680d0459e03b0fa0ce8865e60bda9daea29217485049bc5f82767be5cf6781d51b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}