{
  "manageEntity": {
    "action": "Save",
    "entityId": "794236896",
    "entityType": "Track",
    "nonce": "0x089a00c0fd52cdbdfe55d75a5961f879462a7b7b2772be2db8149d2d57a82977",
    "signature": "0xee7c970c6be5b3740df54ffe27bef4d611f2d516e6bd647c005f7b65e796f52d31fd4a9d625b907798583c63c56ff440af6c2525066c7f02a17292b956b0b3f11c",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}