{
  "manageEntity": {
    "action": "Update",
    "entityId": "275350856",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x88e34d2b742889b0c89bf1c04e3650311977e05464ea927ef9c314b3d432b46a",
    "signature": "0x5ca25ac458d4158c2066bba0376a4fcb1a760546ea5c91ce8b4633793035a470708aef12bce249ba9402f8e7f54f200f98ec2ffad405e6cf25e3e242837b3e411b",
    "signer": "0x99cc71DF4121e0a865e7D094866224A204ae2b44",
    "userId": "275350856"
  }
}