{
  "manageEntity": {
    "action": "Update",
    "entityId": "105387530",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7a705c50907f944329a171abb8d1e7b970c187a6c0b39ce5197772f424f957bf",
    "signature": "0xe7b679eddeec3e23db09a863d6d5cd69d827aeba7580abfca9edc3341376a2af7383c4b79ec61ba6b86b95a1c461718066b8b3ff01107038bbe1f4c7ad967f8a1b",
    "signer": "0xEeE12Ae1A72f1A28574A40111a31BB81B1CE0602",
    "userId": "105387530"
  }
}