{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x6ea26fcdd3bfbb23943458feca9c14b6d39e96039530fda7a57a5f07e9fc34e3",
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    "signer": "0x2129Aa31Becd7c8254c03a5a8cC0D379632482C3",
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}