{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x93c6f40ee0d42a73b802dfb01c2f26bf49a8b29c8d50946f3f7bbef6402da8f0",
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    "signer": "0xe609a3E781d3C5b319EFb939103da2b64BFD1e13",
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  }
}