{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x79ef3f47c4862a985a2feb601c6d40eafd2ad7523e3b58a07927ec2eefc5f0cf",
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    "signer": "0xb20fBf039E5Ae642AAE74e16aeDCeF19aC40da60",
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}