Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '2a0fc084e0588d0ccd5df582864856df1027b03897c15f1eeaf7bd884706748d' 
  AND token = 'NByOg2tEy9m730RMroiXJzl5S9eU9P91Ym1vY7L6N8A=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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