Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '7c8738b135683c3706fddafa71b5333ae083cf8cfcb2e91926e4cd5379c14107' 
  AND token = 'p1JMzVMYjYLNmcZA8a8SEloXsnCRsxzn9oWEjbwLUxw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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