{
  "manageEntity": {
    "action": "Save",
    "entityId": "799934",
    "entityType": "Track",
    "nonce": "0xb69ada35442d621c34b1c19ad43ed9e83df4c4d6da65d3cec12c4b49167ebd3d",
    "signature": "0x7531ff39d508ae5390e89c313c61b4dcd521a518d444b415d927a8ce0b55421470337764638494f0125790bf426f9e839fa8488cac67960ff1d230afbe25e7741b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}