{
  "manageEntity": {
    "action": "Update",
    "entityId": "63401566",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x96cb9bdb0b960186b931c6ab3848f422e5003718828fa5525219dd2544a69fc4",
    "signature": "0x8040c4becab473e42ba567b69abed5fea11c268c6bf3247d3eac64e8d40a9d0d2d8af68db97f4f03e7d3e765967a3fdf737f7cba653314b24f6a29cd823913021b",
    "signer": "0xD6E46FbCc80bDdA035b227a9dCcc9Bd9548C531a",
    "userId": "63401566"
  }
}