{
  "manageEntity": {
    "action": "Save",
    "entityId": "1332480855",
    "entityType": "Track",
    "nonce": "0x42870190022f49c9bd872cb8fd1f47cf7d795c467d73bdee1792ea800580527d",
    "signature": "0x754fce11615507a6b1db63c41bec514c0fcb8e05fcde79ccb59651849d2adec7291735dc234b06bbe9db389b020ba7958f63cffe745a337de8b924e36fb4eb9c1c",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}