{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x1ea0d2ba41c87fc6e06cc55a1a3a623c69fd39cdb29de1f92627d125d4687715",
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    "signer": "0xa900b068954c988c4e1FA3E4D25af93c8aD57346",
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}