{
  "manageEntity": {
    "action": "Save",
    "entityId": "1713885798",
    "entityType": "Track",
    "nonce": "0x6b36dd8a79e92f3d1f87a101c6b91dc846a9d14b15d661cdeaefd6955eb2bfab",
    "signature": "0x4cddc0bf058a3067d675a96b213fbd57fd8d9276106b103ad173ebebbadabcad1906f24c9fa669649607839bbb7fb778397f7bccc3b1a2c9474941dbfe4f26261c",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}