{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x9d705048f0d97e09bfb670a443833e9cbc02156493e8a71b1e122b5246402116",
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    "signer": "0x24DD7aeA25248A54cb0113112D04b97D93fa581D",
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}