{
  "manageEntity": {
    "action": "Save",
    "entityId": "1694047025",
    "entityType": "Track",
    "nonce": "0x83a1aafce8f9d91997f2d34163a377c34361d8aed6094ca59c8404fffe02c0c3",
    "signature": "0x36b88cbb72fa9815995c89857892cb52daca2f773524aec651fd79f13cadaff81f2dbb334ec4a30129d1222328eaaef49483aa7c7e10e00fe087e8c66a7a8c3e1c",
    "signer": "0x0BbaE3b1B763858507f1A953DC2f9Ef8343268D5",
    "userId": "307156675"
  }
}