Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '060da8a47d85cbb7042b435bbf91e75fa7ce46a3cc42e6205422c859ea43c3c7' 
  AND token = 'K0rXVkjTeR6i+K80OzEjIQEbksrT098KCINNjNI4Csg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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