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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '09258003281f3f1c1c8e33dfc9b3cafcd4cdda1e7ec07c9c9dad4b79b663af22' 
  AND token = 'fAGtTYNRMjlB6WTLwpdePxxSylQQ5j7UboK8HcA8+S0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00068

JSON explain

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