{
  "manageEntity": {
    "action": "Save",
    "entityId": "2092110069",
    "entityType": "Track",
    "nonce": "0xf8de97d3b138efa054c7972842a03b3231f0a808d6a62ea9c67a1ce5480cf572",
    "signature": "0x453ce6afe3800d32816e21c35d8b62eb060c7552874e35e1cd536e646698e74438c6067e0a282da736633ccabf6bf4f0b3d72f62b62a07b83038ccbb2f859c771c",
    "signer": "0x1A748d74Db6424f9EA1Ce41A3A445631765103bc",
    "userId": "799948905"
  }
}