{
  "manageEntity": {
    "action": "Update",
    "entityId": "116504833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf869847d942f4ade9875f03eff7222f7532973198430ef6e19b6cb3fc411656c",
    "signature": "0x62c55b40bc549b79b040a4d9207cb34cf54dad5e58825fb9889982eae44ca0632bec139803dfe71430bbe38810b6e57c21960339ae322d4e1903d96dbd2576031b",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}