{
  "manageEntity": {
    "action": "Save",
    "entityId": "644027278",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x339ff82d8a0ae55be28e3b10d431534ca4561da4e65c1beb23d427aef2702cf9",
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    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}