{
  "manageEntity": {
    "action": "Update",
    "entityId": "432888998",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x731cc3a59027ae261c12de09f5f84bbaefe486ed9c5fdd307c81136de8196cc5",
    "signature": "0x7e7d08af8acba1843e65a9459f9e6ef68991ccdb1a3b99dd73fbfc9a389b007645e0997b6f08e34db23d358e0aa92549721dae957796fe08c0386b839225d51f1c",
    "signer": "0xFBf95c6bc807F6f3A75aaD2CcEAE23E5EC61169D",
    "userId": "432888998"
  }
}