{
  "manageEntity": {
    "action": "Update",
    "entityId": "764637541",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe9f0a0f203d16b70107e5dbbe4e96b306a51e6d3de6bc82395c75cff1f801487",
    "signature": "0xdeac70e4395faba7299eceb93acd5c215f7991610ff084b579dcf6c9270c556a31c028b9c3d6830a53395d2835a3c43931f74d9685f18e27aba3430da533b4fe1b",
    "signer": "0x3Ba0778aC1672788BEd34D396F635176f6fBb802",
    "userId": "764637541"
  }
}