{
  "manageEntity": {
    "action": "Update",
    "entityId": "116504833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x86c9f80bf6b00d97eb4e3e606443857ffe3a41cebbe76108cf8e7cce9d739135",
    "signature": "0x36cd0196ae3809c3e5b4f63a1273fe8df54b0c94f11e7bf3beea4f92269b1fbc0cfa3ce55f3d23fe6a985d464bc4279ce082dc33362e1381406834103b6c900e1c",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}