{
  "manageEntity": {
    "action": "Save",
    "entityId": "2080270874",
    "entityType": "Track",
    "nonce": "0xdbb096516239bfa757f97c183a85718727e7c4d6b7e0cd4e9b1ce0e9500ffa63",
    "signature": "0x1935e77cfa68cb369a0d22057cd1cc63d34e02d3c71c86d1cbbd762d9c3183966a74979ede2c1a155f3483f78d1d5b62220390d87a18042de1857d1bda2540fc1c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}