{
  "manageEntity": {
    "action": "Save",
    "entityId": "110140",
    "entityType": "Track",
    "nonce": "0xa3a965020ad0dd100edde3a6a15a37e9ca5fc9024f32005df079558dfec171c4",
    "signature": "0x71001f941fb8d89efbf5785f081fc219264f146ffa9e5e61817aa997f7dce5192da0a3c6c94a5dd252e11cd785624cba0fb5058aa57590360a92f8a3eb2480e91c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}