{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xd7c8d45fd2e7635687c649089e388714b1835ba0e8b044c3c6741a8b4a9fd6fa",
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    "signer": "0x365A9e75cF83736DEAb62EB382A58de673338373",
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}