{
  "manageEntity": {
    "action": "Update",
    "entityId": "116504833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xffb692502461d4fc8cb1e5a931633bb8e11e5bcb4c5aa79e7468cfd3e4215bb9",
    "signature": "0x65e8ceca860484b0f9d4e76f23cd490688b168732da2c7aa8933af8cba663d993f7168007e71aff4f38d0a6c21f1fb0cd765fe859c8a5f9f68d0c1dfe1e9cec51b",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}