{
  "manageEntity": {
    "action": "Save",
    "entityId": "105372526",
    "entityType": "Track",
    "nonce": "0x11dc0a5e09659d9506808654e54086fec04642c55389b629441fd8444164cd3f",
    "signature": "0x8ff462247a2edb878e3deb2df21a8749a84a281ea61c8e207a33a93935d7df4c7bf9fe5e0ddd978a9cde3b26ae7b3795c1ac6e326d02b007b37bd263b90c5d301b",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}