{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x4bb5b2c49c0e7c32166b38fa012c50d38a65262261e990ae2fa417ffcc75ae7c",
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    "signer": "0x0B9e1e3085E6E571Ab09fbd81078295f3f2bCC04",
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}