{
  "manageEntity": {
    "action": "Update",
    "entityId": "853069467",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x46dd27408d6dbf20cf50af83d016ba2837290a133a34f50cd4bd99e9f80d89be",
    "signature": "0xca7e569847643d43d6c7757fa2ea1830c191ba453a012b52dd5d00de77747bec587ecb8a447b58f848b59ee53e557abc940338747453ebb30602bbc70e38f4591b",
    "signer": "0x4F460968D233345D7d626d1F13019caE5ab410De",
    "userId": "853069467"
  }
}