{
  "manageEntity": {
    "action": "Save",
    "entityId": "92584",
    "entityType": "Track",
    "nonce": "0x1ba9ff467cd0b9116ce470de53ade18fc5e6b038759608e89f696087abffe412",
    "signature": "0x875c4fff5d3fea6213ff830902252a69e1e1cb769b47d1bbc49c40a75682cc3013767eda5be951b360ec116bc5e52473833a6e8b97d9419a8aae63e20a503f861b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}