{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x02032bdd1f4b5de7b79dfa6bacedf959097bf558d61a3d4ea354f3b329b84c47",
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    "signer": "0x9Fc3805C165C4ce995D22a0a185798d21f7B1b09",
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}