{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xbb81c86168f563bbf26d1f048ae72e67a1d661089b387cc83b312acf1decefa7",
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    "signer": "0xAb74269b4Cd5892c97eACCAf5FCb7B0D78d50b35",
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}