{
  "manageEntity": {
    "action": "Save",
    "entityId": "86663149",
    "entityType": "Track",
    "nonce": "0x3942637cfc629e6ba4e326f8958e7814b60783eb4612f7abbc1144022d1f29b6",
    "signature": "0x955656e0787ba395218145853210ffc5aa61c68db01035010672ae07a66bec8d0654fa64c69725d54264d68c44331d397f736ab22bbd892080034f52b34ac32f1b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}