{
  "manageEntity": {
    "action": "Save",
    "entityId": "1542339590",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xf72860854a90375a0e3b5160f5fc3b3034fff5fcaf87571ff29e39d9a8a93fa7",
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    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
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}