{
  "manageEntity": {
    "action": "Update",
    "entityId": "673436853",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe70062675bd979fa6a0f4b358fd2c0f60cae8599758f3fb0d840ebb1a358660a",
    "signature": "0x17ace0e68444c0be35a770668c956c24768c57ef7d929cc6282f3ce4401192736d863a7ea4a259ec46a6affd4bd4a2c31b8549b78954669338bde3df3979ad181c",
    "signer": "0x0e203AEFcCEd665ecbcE27153A02AAf6842934B1",
    "userId": "673436853"
  }
}