{
  "manageEntity": {
    "action": "Update",
    "entityId": "669595092",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xfff01ea759ecaf3120e67eaf29e782bfc6034d871349be0eefffdd91e71d8081",
    "signature": "0x0687767d406164757b4f62b6f38220479aff9fc500d1add2baf919d5d3ba7e570221e92b5482d2de30474570b0ee408674d7809326b28b41600aa50e8af1cab21b",
    "signer": "0xfE3c757e8C87133a9b34817c2C0Cf95daB567C83",
    "userId": "669595092"
  }
}