{
  "manageEntity": {
    "action": "Update",
    "entityId": "154619986",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xaed8f44b4d534c95edae8d79d177ace1c7aed2793059bd4c0256fcf5a3f6e399",
    "signature": "0x2c911bcae893fad061dbb78c803d33a6d88ba7fd280ff56cbdbc3cf9d1d4842f776517da21ba62a2439e558aa966dc08b8b66199228b48f3028ac2fa833094391c",
    "signer": "0x11b1a5EB9302bDf9747fc089df1Fe0935adF8F05",
    "userId": "154619986"
  }
}