{
  "manageEntity": {
    "action": "Save",
    "entityId": "1714080571",
    "entityType": "Track",
    "nonce": "0x7365fe20e3f6cbb828b6cdea1dcbdd6eda7bbc6d6bfa3816e4258020e951a506",
    "signature": "0x58c8f88181fd793d708295f58a3029a71d96a5c4924c0c35f5a964eb590e4f5c6f03f206f80a0926f514ee2ce3379078b2816d4f8e61b26b024c12640d97aa7f1b",
    "signer": "0x4A3D09CdfD42dE4C57dc67B09a40B5d9172bD69f",
    "userId": "787102835"
  }
}