Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '4599addbc066a4b3c77ce202c0ae0a1c06bbb5472549bb809763b73be70e5535' 
  AND token = 'Tud27gvf27qQJkg9dWo2g2S3a9SoJzld/IaqNMMfvBg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

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