Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '065c7b2dacfba9dcbe158684631389b06705f78e1c693fcc19e081924150cd74' 
  AND token = 'cFLk6Pc+3I/KaxxhLNC18os0mhNeHAO7zpKx7/UKkt8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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