Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd565a1e2aec95c4f6c88bf7975731d721bdd68678dacc336496897f6d0e70ef6' 
  AND token = '9Adtp7jfzjbHSBscKUPK3OwZOsC0FFDKdN7ADqahz2o=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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