{
  "manageEntity": {
    "action": "Update",
    "entityId": "750137068",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1dca9ae797fc238ac2d2c21baefc38280c5424a8722016b939f00d6f7961da76",
    "signature": "0xed4dd7a10365143a59bd6c8e3a64f4a6dd1bc4269f740a8114fe2d0fbe21c39271431668605499d773e6f63e44010366fa6419ccfe4703d271b488fe93f39c4a1b",
    "signer": "0x3C02Dce6AcDC1527c5bB9829a675a743ECbaD62F",
    "userId": "750137068"
  }
}