Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7190f2abca3525d1884b56515e991a91b8a50f76568ce96411ec186caf35c73c' 
  AND token = 'kdhO/YWPcGZ8hX90jQgaggg/TBIOyc0+Sw3vt3h+EFc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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