{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xf4cd2e8a7c6d2d9bceca988c6b1f1139760b3715bffacffc3e265438731b05cb",
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    "signer": "0x8d3400c74727Fe9b72568d67b9319C1836a145Ed",
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}