{
  "manageEntity": {
    "action": "Save",
    "entityId": "19011",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe9b9b90921125a594b82750fa3567a21635d8a167f575d20749ff000554b9c3f",
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    "signer": "0x7E7b9c4DAC3F284d889a5bc274eA80b8BA5F63ee",
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  }
}