Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '285170f4c020ab9d87eb33ab12532056cbdeb6ae7049ea8b9897041b2075a231' 
  AND token = 'SokyOGd7PqHsvAA34YnyDjojtkUiTvTE8XlYpu4m+80=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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