{
  "manageEntity": {
    "action": "Update",
    "entityId": "104731774",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc1d51cd86a3bbfb8db8996b9eae992d760fc32a996d74c960a784a522a9dec5a",
    "signature": "0xa77535951e600d8410a0065cd5fc9298d953af04d6db17adb84293515396d521022360a7d11e37f010910405cd954159d7c05419b658426dfff8e9752a15673c1b",
    "signer": "0x2d179f6eC2BA69eEbB8aA94b02622BeC225b96D8",
    "userId": "104731774"
  }
}