{
  "manageEntity": {
    "action": "Update",
    "entityId": "794549042",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierakvpnv62ckju4fjvjyfr57w7e3r5ycg2pnkew6ss6dnyx27iwji3q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":692976886},{\"type\":\"playlist\",\"playlist_id\":1900372724},{\"type\":\"playlist\",\"playlist_id\":1558989621},{\"type\":\"playlist\",\"playlist_id\":333184980}]}}}",
    "nonce": "0xeed9ca4896500a85b1a55ee1044078143e893e073eddf29a21266734379a9533",
    "signature": "0x4cef137758ab7708702afeb38aa071aad8e18f3b462d769aa73a8f9c5811f5247eab0df1d670fcd5cb458373338e63995ee50a626414e1029401a3857cfbd0041c",
    "signer": "0xDcB9c7a7328fEF969b183B16F413686f370457f3",
    "userId": "794549042"
  }
}