Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '96e6085696e3cc08a1de8987295cf808b290b7c7c7abd295cfa1ba90c94a6712' 
  AND token = 'CNgr1GxwRhPoC3BKK6K4EX0DY28lj4lG8ZDAaIxQEX0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00082

JSON explain

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