{
  "manageEntity": {
    "action": "Save",
    "entityId": "1128357513",
    "entityType": "Track",
    "nonce": "0xc97c76d6f5ffa20b3c7bffb45d1c3fd67b73ffc6a42d1172332ee8d6ce807061",
    "signature": "0x24ed258fe68fe4e98c02ee0b22187103be4f81018335d4995d8b190154a6a83216875d95f95b3876d0eaeb04e48b2850761ef7ffdf7a780ab708ebe359f245731b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}