{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe397b85fee53287bba2732b6be1aa865d7d8c0fe871dc3e5d48e86722f95feff",
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    "signer": "0x5Aa37ecfE3Cf09207289AC5f629acbf48f9046Bf",
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}