{
  "manageEntity": {
    "action": "Update",
    "entityId": "893153463",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb82fa1cf654aadbf0ff4f1612585175e11f2b9cdfc5fcd63c62585cc6027248e",
    "signature": "0x5712b54884266b83fbd7ac5a5bcccf00917df8bed0915f3896f2e3bbd56de5f130edea5a8a2d3f151af9b3216aace14e9b5a1b950a36bb8e497c2873137664d21c",
    "signer": "0x7D5Ca1488d693753630b505Ea4CedbC71C6192eF",
    "userId": "893153463"
  }
}