{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x3766558a53c787d0bdd1d084496f0c476ca2cbc97a8376ba338a958cdf3dafaa",
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    "userId": "522747799"
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}