{
  "manageEntity": {
    "action": "Update",
    "entityId": "159384638",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdf0b33cd836a6313f485f92199174d6b4fa45b79d2da74dd9be2c79be2b6e35d",
    "signature": "0x0bcdd037e6aae5d35f0484fac27f362b994fd40568df48322927ee78a0454bf13057ba73f84c9e5385a921ec59dae8a5f3d9fd01c1146d56fcdb3cf7620e353f1c",
    "signer": "0x9992190b899BAd1Aa34491C3c24e678200638202",
    "userId": "159384638"
  }
}