{
  "manageEntity": {
    "action": "Save",
    "entityId": "1715755220",
    "entityType": "Track",
    "nonce": "0xd48aa0e0cad18116fee2d8557b2642a21f92874a7b19bc2b17c3e129e1abe4c5",
    "signature": "0xcc39aa4fc4b3f7dbef861cbb8e0513cff4ddbf1a0ae6b15279c4178accf349677302d43cfe5411091af53039256e599446b8c9681dce4f65dba2540d625c362f1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}