{
  "manageEntity": {
    "action": "Update",
    "entityId": "607917902",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xbfff62c6c87d4a24836ee9014d2f797100497641b572b7d009b275c36e5e9cc1",
    "signature": "0xb11a9683d99d367311710b0d01459759f19b92ebcab7a425775e7c9f3d67e6f63c4bbd8c71487ff7eef85fb5585353f4762614f215ea21e5b153bd5ce8ef48371c",
    "signer": "0x1B3B5deE562Cca42D1Ba5E17c988Bc4ddaf24094",
    "userId": "607917902"
  }
}