{
  "manageEntity": {
    "action": "Update",
    "entityId": "996039447",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierayf3kfs2htkwzdlipjvmpcmkaqjhunhh2cw6dmeum5vr2wcwp35mq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":411711952},{\"type\":\"playlist\",\"playlist_id\":1657561016}]}}}",
    "nonce": "0x7d7d8cadf68b865bbdd08b19b119bb072bef31cd0c7c9b18caae3cf4f08d00ea",
    "signature": "0x12bc5005956d916caf245984d46afeb949d793178f8184db3c9494ae7a48c50a75f6265056130b4cef9dbfe3265a6ecda87a1249421f4eca3ca327b763e4bb4e1b",
    "signer": "0xc6d72617B90A84EF03896917d2497C36FEb60611",
    "userId": "996039447"
  }
}