{
  "manageEntity": {
    "action": "Save",
    "entityId": "1109617433",
    "entityType": "Track",
    "nonce": "0xc10f41b6da560860a9925f29191b35976c35b9cbb2d98ba6ff0c7c7fbe10e810",
    "signature": "0x5c5a295d2c67a8dbba52103edb70b2fb5479023b0587bfe832b5a20824356f3504203d63c39a53a1681fd45c9cae23826e7cc6c9edc8ca439f5eec436218c1541b",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}