{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x7ca8f0827fb6738bdd743a0b99047c914429ab3e10880b374b9d4ce1f786a746",
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    "signer": "0x692b82d6C9BCaE0f71b17a7C927Ff0bfEa9D6B11",
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}