{
  "manageEntity": {
    "action": "Update",
    "entityId": "342203446",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5279f9c7d6385810ebfc9a4a2e17de89742572273b381dbd71aa6425dd2b3b34",
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    "signer": "0x4E81E12424774b807a997E28d48B806a16bA88a8",
    "userId": "342203446"
  }
}