{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x806a3844d06d5549f90e93c0656c57ac95c84f315624db89ed6e1e928d523351",
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    "signer": "0x7c2eB52f5ef3861ddC76dB4a1a6e823975c4C537",
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}