{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x2b2f03277aecfbd334dc470af7d1d389f8993d32c1dba50d217e8eef4426cdd7",
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    "signer": "0xc5d6bCdcb6fd9Fe855a783f206E42faff15Af984",
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}