Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'c071d6da5d098a494cd8c9b672abdfebfd3839913a1a0fd7a3a3405887fcc116' 
  AND token = 'Xp9HJFFHa9KEQJWM4ioxqsEex00DnT58MECov+eT+BE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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