{
  "manageEntity": {
    "action": "Update",
    "entityId": "224019652",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xed33c25559ed9000a68d7170c3119237aa73e0ba6685ed03caa43b77574bb9aa",
    "signature": "0x33ed9f33add210da08ca23a67337f9b09a06aec26a6f6e46fdb312c1ebb57bc72bec0ab1aee376412e3a09f584426c577be8551dbd01c8cff641a52264ee64fb1c",
    "signer": "0x7964a5eF7E9a780013d3886B40ca04443D69588D",
    "userId": "224019652"
  }
}