{
  "manageEntity": {
    "action": "Save",
    "entityId": "1182156635",
    "entityType": "Track",
    "nonce": "0xe5b17403f751ee9f094ff7418cd22546e394b31de4bf40f5a415e0ce8195ae63",
    "signature": "0xc9177a1bf6a46a8e215abd0c22c13d2938eb285dc4e4e0745cfd8a3b9b12aaf76fbe2ba5898dd170966465534415ed17d496c2d04325132b807dd6e20ba866871b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}