{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x1546623b583538b5cb062c098ff833bbba3dde46a6f85c36e8bdd022cc21f599",
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    "signer": "0x5E326a4590b46b30aa5C197aA1F11B2FC8303696",
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}