{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x69d89f8b277d7e7cfecc2156dbd7ebee8e300f4a73937630e818693f8c7a44be",
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    "signer": "0x6f9fBaf29f887C08139123eD56e25f9f56940992",
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}