{
  "manageEntity": {
    "action": "Save",
    "entityId": "30682",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x4a164386a0cb6bb82aadabcc2267ce7449d532a80cbce8487d485255cc0f9cee",
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    "signer": "0x03216709b3C72cC48C8Cbd8E8100689b00Dc5b63",
    "userId": "530432949"
  }
}