{
  "manageEntity": {
    "action": "Update",
    "entityId": "154811574",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6309caa15c2d3b4ecab12ff14aa5ffedcbe82f47ed7cc642d0b40470e39fae46",
    "signature": "0xd20ccc549dd91c9819a3d178cdcfdaa30fe6862e751fef7f0703d96148647cff1105d4046a3ab83ad19830d8b870bca1211a7cccd4e150ea8ce0d17a38d3df3f1c",
    "signer": "0x2c6Cdf8369DB319067C998B3A753Ef17059C1DC8",
    "userId": "154811574"
  }
}