{
  "manageEntity": {
    "action": "Update",
    "entityId": "326811555",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd8cd06fc51792969672f12c2f91d95eb4ceb793e5149861c21d15919d9da73ee",
    "signature": "0xd49697d8fa07b0f8c3d297d04bf0c6c2dfb94ade59a9c0e2fbb76fab040fb7154e8aeed1c5ed1c2f3e950097f503f9babfffef0452d6e39bbdda2bd0bf0921971c",
    "signer": "0x3c6Aa744893389cd4CBFa53fdEd080B463b6984B",
    "userId": "326811555"
  }
}