{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe2b0a12708231b22cea0c1170c57d26c7e3914ecd18ca106b792373f2cfe200c",
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    "signer": "0xd4172DACb313eb72C6Ee29bc685450908f4A1926",
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}