{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xc428bf5a98f339173ed872d4b2ddd8040b8d4c5bac7e0b0e6e1320e36a94f028",
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}