{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x0ba48a37d797287a4fd0b20f562edac06611a70fe9be175936e10cf414937544",
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    "signer": "0x46768b7Bf76eb7c0057D3A3dD7Ab558603AaFFbd",
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}