{
  "manageEntity": {
    "action": "Update",
    "entityId": "392144053",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0fa6d0f9c2a3241026e22a4d796d126c6e8660c9b92c5d55f1868a633eec578f",
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    "signer": "0xD39864800E11DBC0263f36faa0767444974a3eC9",
    "userId": "392144053"
  }
}