{
  "manageEntity": {
    "action": "Update",
    "entityId": "689765944",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xbe1c419f787da91865b4cf111b67f562c1e4e449ad85e126583874ce1bb86865",
    "signature": "0x95d6e5c7ec9806b95c25500c23660c49eace5c3d2949eced587f535ca846be350e2763b41781bc6efb84b18c5ec658d634a5eed6d60dc5d4d6b6b60e8db513b41b",
    "signer": "0x53D8436968E5f42162145325A0de86ADc9B3cC3a",
    "userId": "689765944"
  }
}