{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x120e044b324c02a61365cd475bf1262eaae6d4759749a01e68fda0b2d5bd691b",
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    "signer": "0x26010123ecFEFe59a2eCdcF9123f8aE6260F0ec3",
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}