{
  "manageEntity": {
    "action": "Update",
    "entityId": "434726778",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x870fb0cc3cb7daf06884c09041221490e8fcc3b242312aaf6e3be7c5059c96be",
    "signature": "0x7531b66dce1d1a7eda2b10875852bc3ba936e94e85b81140e29702eef944603748089fa6e143b4eb18388ed1208c32dd80bcd55f40a91c50e22c98bfea1b57891c",
    "signer": "0xD6cb88a7DD0a1a267E97ca76ADc8C6734f00aDAB",
    "userId": "434726778"
  }
}