{
  "manageEntity": {
    "action": "Update",
    "entityId": "358096342",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5b6af083ab09a3f23571514174b4d2906bd23acb7a5ba66df9b9311424d64d36",
    "signature": "0x9f8642e9aedb93b66e3d765724b18a71f9cfdad953506933f5effa9d1e53f05a667ad50e1bd2934498b02073c231043e3f7c0340bad4f6fa6ccce7f0801ecec01c",
    "signer": "0x020D53221d43D039D6B5B3cFc4cB9D9EA350c5dd",
    "userId": "358096342"
  }
}