{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x97541cf1fb611cd11ef3a77a1fb88e6df56fab75ce70ccf75aff957bb7ef8ce0",
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    "signer": "0xaa9c57886E50E1C31c9e252d3e949e455fB6a653",
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}