{
  "manageEntity": {
    "action": "Save",
    "entityId": "1547816515",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x1d8cbbc85dbfaee1fcdf98dfd4fd91cf3b13424a627d43db24e34677cd92055b",
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    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
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}