{
  "manageEntity": {
    "action": "Update",
    "entityId": "13984047",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x65b8ee514b0d1408cf33ba52d6ef38bc9f09bcb39cec2f9b22cdcebd7674de79",
    "signature": "0xfd35b9c74a97f363c16adb0a9bb9c2499af1d0ad86a304f9f9d6c50b99bd89b50489d4484e3f8a9c8aa52e96c33730f3456d789e2013fe991a4afeba2bc81e481b",
    "signer": "0x64281812401315DBBa8F02626AA43A7B14d9ceEF",
    "userId": "13984047"
  }
}