{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x1104c767feaefd212663ed0a536fcec42393f4fe3b25745dc75c1704ed6b0162",
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    "signer": "0x82CC8e74D49aBA1111AFDa9c112896606916318f",
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}