{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x04fcef627bd36526685a584eacab230aea6dd0ceb0f535b839bc0fa350937074",
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    "signer": "0x0Ab7f975193aC76cbb68EDD5263b8B03AE56c565",
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}