{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xa0595d2faf6a714d95c4f52d70bb2227eec2551f02ca0c52accc9080c1a68c4f",
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    "signer": "0xb6B208a8f79b1D88d245afa5aDB0a40d38cd6DD1",
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}