{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe179f0a2ed34798d73d60d8219d892dd29227f7aaa1b676ff171fbd0af3f94b1",
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    "signer": "0xab1BF40Da0c24f88F1Bb2c6D83485B0cF44e31B7",
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}