{
  "manageEntity": {
    "action": "Update",
    "entityId": "457531149",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6f2890100a023bbc5b0518df7fa9bfd8d7b48bdb06ae32376d13cfdd9950bd52",
    "signature": "0x2d44a530a4dba7ee1f46b1ba8c8ec8db94dcebff5fb1a93a31ec9d8117e7fc732b8d960a1b962cf43c7aa4e6872cf901721f27d1e7934a4cd9c68e7c351058a31b",
    "signer": "0xae8D0713cBbb0e8164ad4Ce96676231064E88D0F",
    "userId": "457531149"
  }
}