{
  "manageEntity": {
    "action": "Update",
    "entityId": "663565116",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x804ce148016f3f10b5239891feff4080dad17ba2f50aa436e75ed4779a4f0d48",
    "signature": "0x2e93582953ac0ba7fcf67948df50f1c5315a018900d2a7cb931240685d3a1e967ccf6ce8aa45740bdbdc50f414572f4ed2570db4ba9ac8277df0a16d19de910d1b",
    "signer": "0x1EdeBA94Ac57bDa3919C5C728386A4Ea42E1E526",
    "userId": "663565116"
  }
}