{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x1a7570ae15e760896f2b628a543cf23e8ffea819ce246f376550ba638048fbcd",
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    "signer": "0x6EEB6F4Fb8B2091514C245a25A811dD4F8594c3a",
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}