{
  "manageEntity": {
    "action": "Update",
    "entityId": "737351944",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraaitaq65jx7o5ngiavtqu7luorjvvxfl2f34v3ggic7vapsfh3c2q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":577693141}]}}}",
    "nonce": "0x1c2729c6ef1b6c95f3951cb7ff45ad57d2c5eac2afca6e77b4cac86bd05b614b",
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    "signer": "0xD3477a5D42f26D7d97a9Ed213CF35Eb998C7b687",
    "userId": "737351944"
  }
}