Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '2a7ce23554648781e472acd2f66511ee0ea3faa820bebb61fa8797a4eb2c992e' 
  AND token = 'xnbOifmKBuOBIGHUgVGsb0MUz7c10EMXE7Xi5xNUfaM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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