Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'e083e1a8c36619a31c46cf08a8104656404591b7be72f5ecd546aedc27946da7' 
  AND token = 'qG5YjwDa7Voi9ddq1uRJ7kUE/DfeZ9oZ29SCFqjrWrc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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