{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x140d5eb54055c0c94a0b7ab585ab812ee157d20ddc0c62ce3090829ff1e0a68e",
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    "signer": "0xDc77108e6e712f3C3Fe8E2877737aF1d144eD37D",
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}