{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xa4012c3a3209479bd2dc3b351ef77775aebf7e985a3637052386c5cf2b5b6e56",
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    "signer": "0x70F7FaCE3b822ff8c650a24AE8a279A36Cd4bE2a",
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}