{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x44c0584bf715807938c2a77b444685400a014f01b6c9f9b790cfc70c56d40b19",
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    "signer": "0x48ee635eD752d443fBE9C8AfEF948E19f6166C4D",
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}