Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '18060ebd92dd7005f9969d30143694980f49271b2c76020081bfb6f559c2f79e' 
  AND token = 'aqfetpekfXNaLZ2WZX4+uYP8jwA7iO4dajeXdPJBUmA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00015

JSON explain

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