Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '3892751132170b680e73a1a3030ca598d43bdf47a5b7cbaa8e2dc254f847480b' 
  AND token = 'UfiXb9PGQqbNovI10ED4OUjVV92U7vLKACino2b3bhw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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