{
  "manageEntity": {
    "action": "Update",
    "entityId": "940725144",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9096590228becc9dd9c40f736053f39340ea4459febbb7d54885ea28f885de4e",
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    "signer": "0xc0ed13C2bE16fA3e734B60a8Ce3B2DC44ED89322",
    "userId": "940725144"
  }
}