{
  "manageEntity": {
    "action": "Save",
    "entityId": "636326995",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x80490e85490528842c11731c00128a327de530d36da2e59ff23f7cdb928edb8b",
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    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}