{
  "manageEntity": {
    "action": "Save",
    "entityId": "941896171",
    "entityType": "Track",
    "nonce": "0xf79fcba6af9e761fb048f7385b8052ed9bbe8d297c1d3071207e10ca4130bff4",
    "signature": "0xcdcc7182fbe9017eea95c44dc03ddd71d59940cbd065d890f79c6271b47974ef31680499090fa491cdbc614d407f18ca8cacbb904eb40415a361b43d897a7ee81c",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}