{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x776b313644b78b3472cd600606fcf08383ebe05a2a116d9343c021fa7b5f4c08",
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    "signer": "0x0CB375b305C582944913e64FbbE0373b0eB538ba",
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}