{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x41cf950fd7f658950c624a9e5e64b6070e3a73c08a7d98f0b79343184668c1d2",
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    "signer": "0xDc0418f181AdAeC1a5eC17D5E735413F389a6F6F",
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}