{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x88a83ece526f6a65011d0e9c5c2d5c94b21335bd9f3e62227d2aa59eea3a5eb7",
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    "signer": "0xBF23b207dCd7D0F2e635B21211819130e4f997F2",
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}