{
  "manageEntity": {
    "action": "Update",
    "entityId": "477246292",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x054906ac7bc81f05c38491f5438a0225f37db4dd315eea76bc66b9ea64754524",
    "signature": "0x79d91d63239a44176121f382a824f9150681cd6184a8096be1f2a24ffd5df6a4155c18328275c7b845b311aec65e8f8ae63f289005235095cfab66471fe17f1e1c",
    "signer": "0x296bc1b163693aC25238CDF83C8D99A0e2016d68",
    "userId": "477246292"
  }
}