{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x6edddfb2a8a238f6e67a1cecca1e39226e48b0fb1a02771d14983c7a381780b3",
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    "signer": "0xd4F92C7f3bb9b8e0a2631aCf9797D524aB90dd20",
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}