Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'cc390054a6a82e89ac0e2fe2b1b27be0769131f3876302da1b592a6ec0db550a' 
  AND token = '7gcuan8nOrYHLhwh60fwy6CEBsoZuN+dWSLnK0bPxQA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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