{
  "manageEntity": {
    "action": "Update",
    "entityId": "208431511",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierayb23lrrya5focghrkqcedrg7koudo2ytmuopuo3ngn5yxpbbqeha\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":37967},{\"type\":\"playlist\",\"playlist_id\":1484250924}]}}}",
    "nonce": "0xd2e5c9862f8321fa83821b4ee061bd178af789af0694883bc7e7d684c9dd2044",
    "signature": "0x1ce31ba7c742d5212e71f6d40ab35cd6adc0f883f18ed51e9086fe4f18209d3f41e62d5cf4865b8f8aa8922fb71c800bff9792ffa64240908ffaa986ac79f23e1c",
    "signer": "0xdf555AE1cDda83689Ca8307CbD9048AF27b89b69",
    "userId": "208431511"
  }
}