{
  "manageEntity": {
    "action": "Update",
    "entityId": "703443205",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x12ed4b79be3ffbd52cd5f8828adbcc4010c90df38c2c83387fc321617b8352bc",
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    "signer": "0xC8399526b0108bD1E04DB6Af28bc8Ed91D70F9db",
    "userId": "703443205"
  }
}