{
  "manageEntity": {
    "action": "Save",
    "entityId": "92064169",
    "entityType": "Track",
    "nonce": "0x1304ef2a3f73358753c509814280a311d37936c041c7cb63c47aa4d4e27c5445",
    "signature": "0xa3345af28a290efcadcd9a2df18094eef730ecaf23c3d42e551f425750ee4995297503a4f758b857d5a3d3b23203dc6ae70585aae079e916e852bf183982fd9d1c",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}