{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xf7bcc24b1fe8030bf67b403f3a2e850d723a1b4fed6188fca534864af6e84d8c",
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    "signer": "0x8cb83e5f705f02c1cB1e0489b3B3c6696b4e45A0",
    "userId": "806420963"
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}