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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '045e7e64326c5b968747b5c196d20ce221b51ac302b9b66431121d5ae604bcf9' 
  AND token = 'wzXNDeG6aV8anuofia267C+Ua/rq94xYIoW6k0a3Odk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00013

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}