{
  "manageEntity": {
    "action": "Update",
    "entityId": "30764527",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa20e809e237a82cb92a84462f46b993e5c7835523e6a3936fc6efc70a563f16b",
    "signature": "0xa1a71e74477f23d9b296707019464f0c656195885302b39d1f098a96af6e54f80401c2ffb49b2d92c922a7e364a15df2f610bee2cdd6512b1dd69d689a60be851b",
    "signer": "0xCe8b9C285db4b64890E22179787F1B43A8E2Ee46",
    "userId": "30764527"
  }
}