{
  "manageEntity": {
    "action": "Update",
    "entityId": "780083254",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb38f5cba6b2e850e08dbd09a3823df41c91b080c408da9722ac1110319125455",
    "signature": "0xb7dd3e7f55ef72afe9c177cf23618c56346e8d05817421e5e3b74c10ba1d7089160962a9c137aa878f42416f6fe6b512c309c02744e609afe3f14a6a153618081c",
    "signer": "0xa741B0106346033C4A499068360937e06ee35E62",
    "userId": "780083254"
  }
}