{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x986370b93c2489f041ba36dfe8fe77f430af6e022ac76eb621551b2406c36d18",
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    "signer": "0x9587E54fD9e50A63472e59359F08eFD8F011cc70",
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}