{
  "manageEntity": {
    "action": "Save",
    "entityId": "57176426",
    "entityType": "Track",
    "nonce": "0x097c9c510095fa790db2460f3e83fd20b9a608a4513912bc92fb8a2df6ed5156",
    "signature": "0xc07fd286b0e433b41ed59c5784760ae532178c53bd13e33ac1b2cdace01a71fa6b4f472ee4ccdc2957cf57111626c4368826fab1e5dba2f98036340f5f598af51c",
    "signer": "0x1a08B067c1Fb3c46dDA49f6d1f590e00DC5baFCd",
    "userId": "60095054"
  }
}