{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xd4c8efb783f2938558cd33467fe0f759e704ac3b4ed950a5508a710915cb628c",
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    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
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}