{
  "manageEntity": {
    "action": "Save",
    "entityId": "1523262940",
    "entityType": "Track",
    "nonce": "0xef075dfd98740154abace387a7076ac830838bd649de987489a6d040d5b2096f",
    "signature": "0x29b7dd25f30d403309c3006cc8ff5e51fa98acb1e56513cdf24d053c3a24b8a03e1716fb7afeec2e43f5e7755644c230dc6b6117510934013031181fcee7e81f1c",
    "signer": "0xf765901fa8CEf102E6aB615eB224ff151Daeef98",
    "userId": "582942186"
  }
}