{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x36ca73c32835817512b555927b902f87fd9954a47e14a2ef3f1818c5567ee432",
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    "signer": "0xd62F2cE2B93f21842ee826E6e72Dea2bF6974647",
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}