{
  "manageEntity": {
    "action": "Update",
    "entityId": "489949969",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf227a2a5b09f4ca0571c812304f6fc20d0fba6feddaea647c54ac47e55680d3b",
    "signature": "0x0baa62070bae6299573c41316b62b21dee5c6c42ff9e4e2e89a6f7dd1ab4c74868b4cb1836fe8f4a797b4909a6a140605b20dc1c590707dfa0145c54165a51df1b",
    "signer": "0x745c840D2691AC877854D3019Eec04b2376Dd90F",
    "userId": "489949969"
  }
}