{
  "manageEntity": {
    "action": "Update",
    "entityId": "602484333",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7a202aacdcaebb23cdca02cba8164b4ff00eb8eed7b8d92d04c8f5bed2e215a5",
    "signature": "0x958cc9e24c8cdb5812ef699d8df9746eb36472d2d1ae399e05f64e3e8b8d7dab0c9af7c69e2a85f1bf82560d8483e387dd0e53ade06ade1d3e1b96d958d5d1f51c",
    "signer": "0x494FD286733034c5F46B1A07c5729bc6E919e889",
    "userId": "602484333"
  }
}