{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x4ae956c0d6f3cb55b459f7d74892a7fd453377d5be3744eb2a8f81fe4e5b358a",
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    "signer": "0x008de319cd77e6eCCc31Fb1b504137b4f4f54633",
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}