Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '4423945fbcdfb172e31ecd75bd7b006164628488504d625cfe54deb3f079520e' 
  AND token = 'tAWCu6Iae3KzUqfw7cCxm1adVJKetU7h5qucZUKQxw8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00061

JSON explain

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