{
  "manageEntity": {
    "action": "Update",
    "entityId": "586542520",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5f7fc194411406657c2af707a2f6d9f0d9033f0ccf882df2d092d6a1bab53124",
    "signature": "0xc0422bd27598f325fe64570b49270fd878d08fe363d9c939e4e804ed4b844bda38a323edf8116e7ff9104211366ed1ad36a68e03af2b54ad7aa5f50e0803d84c1b",
    "signer": "0x358A9c732C8F170b3fF6E17798c3e3AA2DFeAdAD",
    "userId": "586542520"
  }
}