{
  "manageEntity": {
    "action": "Update",
    "entityId": "473911971",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xbe6d1ada64341af59f6a99a79e52257e26abc0fe3d0755f18b3173b387c07d61",
    "signature": "0xebd09ee6f9a615f47b9a1f5236f81ab7db628ea0e837946bcac641223ff9822547b7694b129e426f39c9d1fddf2d09d6172ab66c423ccb958c4dd0c315b353b41b",
    "signer": "0xfffF643204D053ae5bFC296Aa20F15313084C719",
    "userId": "473911971"
  }
}