{
  "manageEntity": {
    "action": "Update",
    "entityId": "428424994",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa1f397eb0504593a82d3bb126545c409c1c09342ed31cf3c36a39b6be9d19fc9",
    "signature": "0x9c81298320a929955503d1c69ea3578de6fbc321eb31062de7afb1ceb248ffc23a0b81dffb21b86050f3fc9fc632b88f341893ed4fd8bd0a28de85c3b9d6220c1c",
    "signer": "0x9BCEc58987f4D9dA548362DF974dc51F726ea53E",
    "userId": "428424994"
  }
}