{
  "manageEntity": {
    "action": "Save",
    "entityId": "1693277927",
    "entityType": "Track",
    "nonce": "0xd37c8cbf5ea2e2542f46721d35747598d7691972391f8a77e86806aa6c8c0295",
    "signature": "0x44a5cb4ad68bc2c043c44e88d8e5866e47ca153cf8766615f4f2f212c116da7a0b05a2f05d1044a95d7cd6f0ab17d685099f5db17a44d02a2f20d3751075a7dd1b",
    "signer": "0x97eAfE883FbF33a8b75f6f37440caFE5CC452d3f",
    "userId": "849776474"
  }
}