Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'e74d2f45626cd6618ce851ef7d5772fda63a0da4340613898e70d33a89a61b1a' 
  AND token = '9dJPEzN5B31JuKxCAuRmSyXtb8kH0mtE9CiGu1O408c=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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