{
  "manageEntity": {
    "action": "Update",
    "entityId": "350926246",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraiiejau7lxjeqlwmb2nzvlmvav7sda65ly3qylkozs5es3kjtqn2a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":323440843},{\"type\":\"playlist\",\"playlist_id\":643862152},{\"type\":\"playlist\",\"playlist_id\":1339679597}]}}}",
    "nonce": "0xb3f5253f911e4ddf54807b77acd246c27cab7063849952b10ec558a19edc9e8a",
    "signature": "0xac527bb21faf2637016da0ab47ead3b551f219cacee3d13f55204e167e3526e41f2d593a51d7b9fa23bf12e3906c35f4166f5bbf79b1a0c7327c39c782ddd22b1b",
    "signer": "0x956362Be3Eafa2C07Ef5Dcf41cf05B9ac86E0d4E",
    "userId": "350926246"
  }
}