{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xd00211fda73bbe8ed6578185326567fd15103b6c04621ff8ded485205e1befb1",
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    "signer": "0x22ced72E64A434FC50393fF8e62bFCdB22AafB6B",
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}