{
  "manageEntity": {
    "action": "Update",
    "entityId": "188840731",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xbe42583a6fbd3061b9a86613e559fc1ae1c5b13f0b0ab0c9d198b987cb63e35b",
    "signature": "0x41a672d98f340b9b9d37af364edf6130d276a68f0ff01449127f915d250f1bd51517ebb436e2d634e2c8ed2a03ce00c5df94ffae65998336e2e80f81794d547d1b",
    "signer": "0x20cAE795D2700f9075efF654C51FDD875673Bbb6",
    "userId": "188840731"
  }
}