{
  "manageEntity": {
    "action": "Update",
    "entityId": "248546587",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x47411a4f6ccf3547bf83fd6f772305a0e8bbf4d95dec0e5fce91c020dd844a25",
    "signature": "0x53c83ca6fb4801c22ad2bb0aada67a46c8aa91928cb1159c486dd70d9aead4ad589fed40fa8284842f7c22a7ba733afc0cc91c4be1fdc408225d16026ab9aa581b",
    "signer": "0xb6ED0912F59E619BE2B92caA823bf630d836ECb7",
    "userId": "248546587"
  }
}