Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0261a992a197784ea93511c31147087e24978dca6b72e07b2ea9da1889fb7efb' 
  AND token = 'KesYqd0a/NJ0hPKpPPOt9kWxMMTWHFeF9QPxkYX/KaQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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