Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '2f9c4f829389f4506ad281c25d5fbaf21d1338d855f25c3e79e01ba014b307f1' 
  AND token = 'Rye5CQmS3KpQ6Z0aV1fhNvl0ho83vW9EF2YpX0VDfZI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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