{
  "manageEntity": {
    "action": "Save",
    "entityId": "756150589",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xcc6f860df7c35a1d882d72ef12c723b8080a37098f1d0d78ab8259da4fdb9927",
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    "signer": "0xEeea4f65FD2D7EffBC68176EAbe8544B088Aed57",
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}