{
  "manageEntity": {
    "action": "Update",
    "entityId": "370658587",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera2ktaaqvvm776hsd2rn7lfuvi4j7luy6yhkrijhfphxel4yusd6kq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":2113060141},{\"type\":\"playlist\",\"playlist_id\":1732655910}]}}}",
    "nonce": "0xd8477f3f95365f790c9761c27e20b6f0018dd0e7a9edb450e36288204e87d019",
    "signature": "0x65bc6e21bbf144461b2489807427712a468c3991eabaebc9fa918269db397f67677c0c5f29f41ce7c7636e96ff0b6d57a83ffc2ca54861131470b823ab114e361b",
    "signer": "0x1817FFD7b8CA5943F7DcDdf3bcF2B91D081eC078",
    "userId": "370658587"
  }
}