{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x8cf0b4b2a7e1f29e751af1dea1fd956f994723c5b9fe7c2177db706f6f19ea59",
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    "signer": "0x00Bb9677B2A10248e986D61ff1d5295A7DE8BC6e",
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}