Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '21fc9713f7d8582ea35b1c3fdd02a54de8c945e98f0a1d02d5fe882980c038c0' 
  AND token = '7mnn+OrZbBB+o/rfgFbwRyMCcSr6rozuItMI6xc852w=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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