{
  "manageEntity": {
    "action": "Update",
    "entityId": "326760792",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x60c07b14416e0136aafd80e530b34daf24f3722fda9354474e7286bc92e66cc0",
    "signature": "0x158110202c1e3928a9f30b6cffbf38d6a29adabcf5925118a962a3f2d94c2b2d45725c2b5672999edf10a71f6824f166aa94c24321003a0be9ced7295b56e75f1b",
    "signer": "0xc350d890DCc6382B84906765c352e34689f1F38f",
    "userId": "326760792"
  }
}