{
  "manageEntity": {
    "action": "Update",
    "entityId": "350926246",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierazaglqbr436rjdh7donqzkhk3t56dhyjakdmtn77tkarfna2d56bq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":323440843}]}}}",
    "nonce": "0xca433028fff39c52f43090c98e5d2d95ed53e2867a863f781a8701354aa97163",
    "signature": "0x48bafc23fbb4ecab76d4e05a787cf5ca3a87b7bfea453d542dda4099dacaaa5e33edbfb87e5077d247cc5cc9a799743bf06829f02765fc2de1c0fcf4dc893ff61b",
    "signer": "0x956362Be3Eafa2C07Ef5Dcf41cf05B9ac86E0d4E",
    "userId": "350926246"
  }
}