Sandbox

SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = '854f4fd473ff49dcde85a9b885bdf9ab27035861aaa9e1edca0e2efad175dec8' 
  AND token = 'QXiTs8p9mzIq9UA135vKiW20OjfoXxFOgF90ffK/IzE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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