Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '80c799e65c9cd08b395d8f6d30fdf54c0310b6403934459308f97f319251078d' 
  AND token = 'THteBVy7TRHr17UW2HhGF8Wg11lC1l8df6dR4g6EJUo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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