{
  "manageEntity": {
    "action": "Save",
    "entityId": "368632220",
    "entityType": "Track",
    "nonce": "0x6e2c6bc464df1c688c8434b8adc186b18823f156bf1431238e7a6fc0e9bca8f0",
    "signature": "0x4cc8ea9053865cc9c40e8c45b69e5c5459c6e82b5872be454cbbed07d7135cce5e51cbd48b8585c6097d3581a4270e992f93a6036ecd0229b5af71ec8b06dce41b",
    "signer": "0xCb62a9Cb72608ca74EEe6bA8E7D4F9eDc508C9ce",
    "userId": "797245792"
  }
}