{
  "manageEntity": {
    "action": "Save",
    "entityId": "89830",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x9ec9eb994aa2d89f1daaf533567d3cf29c1f110e1184ec6dceedf35d1edfc766",
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    "signer": "0xFd603a97B294381F5bD8EbAC123EfAc44a23741D",
    "userId": "831048896"
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}