{
  "manageEntity": {
    "action": "Update",
    "entityId": "834540087",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdfbf5791ebbe7418cff5a2a57472f72aa8d75cce774c18dbb174bffad0c2c52a",
    "signature": "0x77140dc41fa2e55faac1830dbe1bea18f2bc718f55499ff384e8ad123be803ca07875b39ace98c573ad41f19370f0e4ed01e746a67aadbca91acd7e8214633dc1b",
    "signer": "0xF0CaA5581Af6ee80150b5aA4643d1069EC176dB6",
    "userId": "834540087"
  }
}