{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xa02b1a9d1f72d16cd01933446a8f7b256a9aa5216c7458739398d0048c74d9cb",
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    "signer": "0xdcFe6Cf855Ad2418a373cd330AF57DE96dAE3C21",
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}