Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '2039793cdb95b25ecc64e22e736e90a79a601294e4955dfd17bf1bb8e21f14da' 
  AND token = 'ERniC4Bl4b1Wr8cwgLdRuFThX3+sII6xQI0+PFi8l1k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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