{
  "manageEntity": {
    "action": "Update",
    "entityId": "18054566",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5c6cdfe2d1274935c8a3e6084d67bcf738aae488b18c688d314cb6a027d9dad1",
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    "signer": "0xB9eed62bBE341044AB03f1DDF57b967A6abAcD35",
    "userId": "18054566"
  }
}