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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1130811484c71ef69277ab35ad3e4a0472a028b70159298bb986b3c8a222953a' 
  AND token = 'vT1FE95w7ECvH9gji4Hlw6wDrqvbrew4E88eWuN2V8Q=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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