{
  "manageEntity": {
    "action": "Update",
    "entityId": "18002392",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierastz7fdl7l7l454hpb5qv366zxqhr4wmmfyilrrj6lodu5zh5xi5a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1608367466}]}}}",
    "nonce": "0x6285442644a21fe338a2cba0175b9157a330d9c4359e012a1473a7fd6ceee622",
    "signature": "0x61e2f6c502e8f8b809fde89a0845552b7059403d71e5675e8bd3e28b644186475bc8e8952a5942fb58f1d2db729867f2ded0fc856e884ddf8e304586f634a7b11c",
    "signer": "0x7Eec440C3674292A66f7e20C5E6efAeaE5956B9a",
    "userId": "18002392"
  }
}