{
  "manageEntity": {
    "action": "Update",
    "entityId": "366953361",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf8c55b468f3f3f258b57acae73a82ac30fc9876c964e2d3656fc0f3f6e604c5f",
    "signature": "0xa2ff5b740c9d34fb143e62f944c6c6dfcdfa2409c4f23829ab8ee9c1f07781335e0ba24e1ad58c5d67ad32655b5fe618cd38722081dcfcada1a522d5f67a63db1c",
    "signer": "0x61759FD9d69b6C29FE84fc39eaB6C50Cf7dCd8FC",
    "userId": "366953361"
  }
}