{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x40bfea2aba0bc0ffd5923658fd59a0b269b4431ba65e03a0af39f4b9ac0f6700",
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    "signer": "0x113B2F3906eeb49B7FC6d3c5b9Ba254F87019006",
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  }
}