{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xba02c9c402fee970b89851593c07a5f5ec55cb028fbfaaecbf37283ff5e036c1",
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    "signer": "0xFD83a557B0e0CC32c3418e63a26d7162a0CAe4F7",
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}