{
  "manageEntity": {
    "action": "Update",
    "entityId": "588125677",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe9c10f3aa14364b918d73e5bcedf9d4eafe6557818757f5605b698ff7620b166",
    "signature": "0x1af27faeb49d17f92c3165550f4bf7e243e73ccbbc47181632954c29ddc6c1d97f04663e01a7dc133becc8048a2edd7df14a495d3e38e24060bd0d586b23364b1b",
    "signer": "0xC75a276D0a36850045510B0483E737bCDd1F5E9b",
    "userId": "588125677"
  }
}