Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '12041243e76555f07004a103cf23d9a7d25654ae7ba2f58e40d2f6af41c2e852' 
  AND token = 'hYiW2OwROJAWf+zl63xsA7uB5AspwFSAsPr7G9oq2Pk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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